Hey, Adrian Rosebrock here, author and creator of PyImageSearch. Make sure you use the Downloads section of this blog post to download the source code, example images, and deep learning models. The remaining three code blocks will create the frames of our GIF: Our sunglasses will drop down from the top of the image. Your post is helpful. If you need help learning computer vision and deep learning, I suggest you refer to my full catalog of books and courses they have helped tens of thousands of developers, students, and researchers just like yourself learn Computer Vision, Deep Learning, and OpenCV. Youll then combine all of these techniques to build a meme generator with OpenCV! Deal with it. Then combine these methods to create a Other interpolation methods may be more aesthetically pleasing to the eye but will actually be harmful to our mask. Referring to my code documentation comment on the preceding lines, I simply explain that were ensuring that the sunglasses cover each entire eye rather than just reaching the point at which the eye center is. Error message, blank window, crash? To install imageio library, simply do pip install imageio. If you're serious about learning computer vision, your next stop should be PyImageSearch University, the most comprehensive computer vision, deep learning, and OpenCV course online today. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. Can you give me a hint? Note:Notice that we are using nearest neighbor interpolation when resizing the mask. Thanks and keep sharing. We decided to take the trip to get away from the harsh Connecticut winters we were in desperate need of sunlight. In order to build our meme generator, we leveraged computer vision and deep learning in a number of practical ways, including: This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Building a Deal With It meme generator using OpenCV can teach us a number of valuable techniques used in practice, including: 1)How to perform deep learning-based face detection. ## Read the gif from disk to `RGB`s using `imageio.miread` gif = imageio.mimread(fname) nums = len(gif) print(Total {} frames in the gif!.format(nums)) Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. From there well review the project/directory structure for our OpenCV GIF creator. In essence, well convert the foreground, background, and alpha layers to floats in the range of [0, 1] (Lines 46-48). We decided to take the trip to get away from the harsh Connecticut winters we were in desperate need of sunlight. To download the source code to todays post, and be notified when future tutorials are published here on PyImageSearch, just enter your email address in the form below! 60+ total classes 64+ hours of on demand video Last updated: Dec 2022 Deal with it, Nice one!!! While I love hearing from readers, a couple years ago I made the tough decision to no longer offer 1:1 help over blog post comments. Cell link copied. Were using rotate_bound here instead of just rotate to ensure OpenCV does not clip off parts of the image that are out of view after the affine transformation. The rest of the above code block loads both the image and mask and then proceeds to perform alpha blending in order to generate the final frame output. OpenCV will be used for face detection and basic image processing. 8.7s. Python. Our final output frame is a special case as it as the DEAL WITH IT text which well draw on by the frame by means of another masking operation: If were on the last step (Line 199), we need to overlay our DEAL WITH IT image (Figure 5) this is again a special case. Otherwise, continue. Do bracers of armor stack with magic armor enhancements and special abilities? Finally, lets wrap up todays tutorial on creating GIFs with OpenCV with a good-hearted meme. And how is it going to affect C++ programming? Lets extract the face and calculate facial landmarks: To extract the face and find facial landmarks, we: Given the coordinates of the eyes we can calculate where and how the sunglasses need to be placed: First, we compute the center of each eye then calculate the angle between the eye centroids (Lines 145-151), just as if we were performing face alignment. Lets go ahead and get started implementing our OpenCV GIF generator! The same operations we applied to the sunglasses themselves need to be applied to the mask. I tried but I cant create the perfect one GIF. Looking for the source code to this post? sign in Figure 4: Are you wondering WTH this sunglasses mask is for? In an 8-bit image, a single pixel can have 256 multiplied by 256 multiplied by 255 different colors. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Inside youll find our hand-picked tutorials, books, courses, and libraries to help you master CV and DL. ofxGifFrame is a struct within the ofxGifEncoder header. Our final output frame is a special case as it as theDEAL WITH IT text which well draw on by the frame by means of another masking operation: If were on the last step (Line 199), we need to overlay our DEAL WITH IT image (Figure 5) this is again a special case. Dlib will be utilized for detecting facial landmarks, enabling us to find the two eyes of a face and lower the sunglasses on top of them. Dont think shes a cute puppy? You will also have to modify ofApp.h. Use Git or checkout with SVN using the web URL. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. The face detector will enable us to detect the presence of faces in images: Then, on Line 103, we load dlibs facial landmark predictor. Hi Adrian! Other interpolation methods may be more aesthetically pleasing to the eye but will actually be harmful to our mask. the answer is YES if you compile OpenCV with GDAL support. WebIn this blog, we will learn how to create gif from videos using OpenCV and imageio library. Lets load the config file as well as our sunglasses + associated mask: Here we load the configuration file (which can be accessed like a Python dictionary from here forward) on Line 89. Stay tuned! opencv_traincascade with same size negatives (as positives) phase correlation for image registration(image stitching) Does OpenCV provide Connected All you have to do is remove the #include ofxGifFrame.h and it works. We all need a good laugh every now and then. If you arent familiar with ImageMagick, you should be. Please Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition. And perhaps the best way to find LOLs is from memes. Here you can see tiny Jemma puppy sitting on my shoulder: Figure 13: Jemma is adorable. To install these dependencies see thePrerequisites and dependencies section above. Find image inside of another (corners detection? Enter your email address below to get a .zip of the code and a FREE 17-page Resource Guide on Computer Vision, OpenCV, and Deep Learning. cv2.imread(image.gif) is not possible.But there are many other alternatives to insert a GIF. Figure 1: To create GIFs with OpenCV well be taking advantage of OpenCV, dlib, and ImageMagick. Make sure you use the Downloads section of this blog post to download the source code, example images, and deep learning models. I opted to use an image since OpenCVs font rendering capacities are quite limited, and furthermore, I wanted to add a drop shadow and border to the text which again, is something OpenCV cannot do. Then we proceed to rotate and resize the mask exactly as we did to the sunglasses on Lines 172 and 173. Line 4 is the path to dlibs facial landmark predictor. Using our JSON configuration variable "steps" (the number of steps ), lets generate evenly spaced y-values to place the sunglasses on each respective frame. The temporary folder will hold each individual frame in the GIF. All too often I see developers, students, and researchers wasting their time, studying the wrong things, and generally struggling to get started with Computer Vision, Deep Learning, and OpenCV. Now lets set some parameters for our meme generator: Below you can find definitions for each of the parameters: Now that weve created our JSON configuration file, lets move into the actual code. Theres no point in writing multiple lines of Python to use OpenCV for that. Lines 5-8 are the paths to our Deal With It sunglasses, text, and associated masks for both, respectively each of which is pictured below. License. Building a Deal With It meme generator using OpenCV can teach us a number of valuable techniques used in practice, including: Todays tutorial is meant to be fun, jovial, and entertaining all while teaching you valuable Does OpenCV provide Connected Component labeling method for binary image? WebCreating-GIFs-with-OpenCV/create_gif.py /Jump to. Once we understand the project structure well review (1) our configuration file, and (2) our Python script responsible for creating GIFs with OpenCV. We all need a good laugh every now and then. ImageMagick is a cross-platform command line based tool providing quite a bit of image processing functionality. Here is an Lets construct our own scripts command line arguments: We have three command line arguments which are processed at runtime: Each of these arguments is required when you execute the script in your command line/terminal. When would I give a checkpoint to my D&D party that they can return to if they die? //lib headers. Then, on Line 103, we loaddlibs facial landmark predictor. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. To review OpenCV basics such as working with masks, be sure to give this tutorial a read. Approximately six years ago my dad and I adopted the family beagle, Jemma. WebNote that in the C++ snippet, you first created a matrix for the image, then used the imread() function to read it. Each frame, in turn, will show the sunglasses progressively getting closer to the face until they cover the eyes. The sunglasses are correctly lowered down across my face. You can master Computer Vision, Deep Learning, and OpenCV - PyImageSearch. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Extracting regions of the face (in this case, the eyes), Computing the angle between the eyes, a requirement for face alignment, Generating transparent overlays via alpha blending. Then we load the sunglasses image and sunglasses mask (Lines 90 and 91). The remaining three code blocks will create the frames of our GIF: Our sunglasses will drop down from the top of the image. ImageMagick is a cross-platform command line based tool providing quite a bit of image processing functionality. did anything serious ever run on the speccy? To learn how to generate GIFs and memes with OpenCV, just keep reading! The entire project is available for you to hack with in theDownloads section of todays tutorial! If you arent familiar with ImageMagick, you should be. I hope you enjoyed todays tutorial on GIF creation with OpenCV! The text is actually another image here. Localization of the eyes and the calculation of their centers. To install ImageMagick on Ubuntu (or Raspbian) simply use apt: Or if youre on macOS, you may utilize HomeBrew: Much of my blog posts and book/course content take advantage of my handy package of image processing convenience functions called imutils. if you're happy with imagemagic (it also sounds, you're not trying to do any computer-vision at all) -- stick with that. In fact using python-opencv to convert images into video is very simple. import cv2images = []#list of cv2 image objvideo = cv2.VideoWriter("test.avi", cv2.VideoWriter_fourcc(*'XVID'), 24, (1200,800))for image in images:video.write(image) The main function is cv2.VideoWriter. It accept four basic parameters: Tabularray table when is wraped by a tcolorbox spreads inside right margin overrides page borders. To keep the post lighthearted and fun, we learned how to use OpenCV to generate GIFs of the Deal With It meme, a popular meme (and also my personal favorite) that can be found in some capacity on nearly every social media website. Making statements based on opinion; back them up with references or personal experience. Later in this script, well be extracting just the eye regions. I appreciate your blog. Good tutorial! Finally, well take a look at the results of our OpenCV GIF creator by building a meme generator for the popular Deal With It meme. read more about nearest neighbor interpolation here, Used as a response or retort to someone being disapproving of something you did/said, Involving putting on sunglasses as you walk away, leaving them to deal with it, Grab the last image path since it will have a separate delay (, Assemble the command string with command line arguments and then instruct the operating system to execute, Determine the face detection with the largest probability and check versus the confidence threshold (, Extract the bounding box coordinates of the face (. Lets also create a helper function that will enable us to generate a GIF from a set of image paths using ImageMagick and the convert command: The create_gif function takes a set of images and assembles them in a GIF animation with the specified delay between frames and loops if necessary. But after reading your blog I can solve my problem. Now for the fun part lets take a look at what our meme generator created! What is an undefined reference/unresolved external symbol error and how do I fix it? Last week I couldnt find the tutorial anywhere, so, as a blogger, computer vision expert, and meme connoisseur, I decided to create my own! You can read more about nearest neighbor interpolation here. As you can tell from the docs, there is a lot of functionality built into convert ! I have learn that the ImageMagick is totally a go-for. Do you have a need to draw polygons, lines, and other shapes? Notebook. Logs. Does the collective noun "parliament of owls" originate in "parliament of fowls"? Change vector pxs; to read vector pxs; Thanks for contributing an answer to Stack Overflow! This Notebook has been released under the Apache 2.0 open source license. I am using opencv and i will send the code for the displaying of the .png file (that is working when you change the directory to a valid one). To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Once enough motion is detected, begin sending the. Youll then combine all of these techniques to build a meme generator with OpenCV! From there we can rotate (Line 155) and resize (Lines 161 and 162) the sunglasses. Heres a good joke: Figure 12: Even in low contrast, my face is detected and my sunglasses are put on by OpenCV, making for an excellent Deal With It meme/GIF. Course information: Where does the idea of selling dragon parts come from? These things are not taught in universities. What about batch color adjustments or adjusting the spatial dimensions of an entire image dataset in a single command? Webopencv 14 GIFs. Last week I couldnt find the tutorial anywhere, so, as a blogger, computer vision expert, and meme connoisseur, I decided to create my own! If you enjoyed it, please do leave a comment and let me know. For those of you that attended PyImageConf 2018 (read the recap here), you know that Im always one for a joke. Deal with it. Then we proceed to rotate and resize the mask exactly as we did to the sunglasses on Lines 172 and 173. Link for moviepy . Lets extract the face and calculate facial landmarks: To extract the face and find facial landmarks, we: Given the coordinates of the eyes we can calculate where and how the sunglasses need to be placed: First, we compute the center of each eye then calculate the angle between the eye centroids (Lines 145-151), just as if we were performing face alignment. Asking for help, clarification, or responding to other answers. Figure 6: This mask will allow for a border. Didnt like todays tutorial? Getting error that cv2.imshow() is not implemented, Effect of coal and natural gas burning on particulate matter pollution. Can a prospective pilot be negated their certification because of too big/small hands? Once we understand the project structure well review (1) our configuration file, and (2) our Python script responsible for creating GIFs with OpenCV. For example, lets create a black color image in Python. Converting a video excerpt into a GIF, Then a video file is opened and selected the part between 122.65 (1 And if you didnt enjoy the tutorial, whatever, deal with it . 3)How to take these Each image (video frame) of the decoded GIF should be stored in the vector of cv:Mat in the order they appear in the GIF. Remember, the create_gif function is a wrapper that passes parameters to ImageMagicks convert command line tool. 1)How to perform deep learning-based face detection. So, lets get started. Why? Go ahead and open a new file called config.json and then insert the following key/value pairs: Lines 2 and 3 are OpenCVs deep learning face detector model files. Instead, my goal is to do the most good for the computer vision, deep learning, and OpenCV community at large by focusing my time on authoring high-quality blog posts, tutorials, and books/courses. Did neanderthals need vitamin C from the diet? Lets construct our own scripts command line arguments: We have three command line arguments which are processed at runtime: Each of these arguments is required when you execute the script in your command line/terminal. python file In order to build our meme generator, we leveraged computer vision and deep learning in a number of practical ways, including: Finally, we took our set of generated images and then created an animated GIF using OpenCV and ImageMagick. Machine Learning Engineer and 2x Kaggle Master, Click here to download the source code to this post, read more about nearest neighbor interpolation here, I suggest you refer to my full catalog of books and courses, Face Recognition with Local Binary Patterns (LBPs) and OpenCV, Face detection tips, suggestions, and best practices, Deep Learning for Computer Vision with Python. And finally, well add the foreground and background to obtain our output which we then return to the calling function (Lines 56-59). No attached data sources. The sunglasses are correctly lowered down across my face. The entire project is available for you to hack with in the Downloads section of todays tutorial! Referring to my code documentation comment on the preceding lines, I simply explain that were ensuring that the sunglasses cover each entire eye rather than just reaching the point at which the eye center is. Figure 7: The OpenCV DNN face detector finds faces in images. And finally, well add the foreground and background to obtain our output which we then return to the calling function (Lines 37-40). Using our JSON configuration variable, Glancing atLines 189 and 190, you might be thinking, WTH?. This is handled on Lines 178 and 179 where we take advantage of NumPys linspace function effortlessly. I created this website to show you what I believe is the best possible way to get your start. Run all code examples in your web browser works on Windows, macOS, and Linux (no dev environment configuration required!) 2)How to use the dlib library to apply facial landmark detection and extract the eye regions. Theres no point in writing multiple lines of Python to use OpenCV for that. 60+ courses on essential computer vision, deep learning, and OpenCV topics And if you didnt enjoy the tutorial, whatever, deal with it. Notably, well be using imutils, dlib, and OpenCV. We need the masks in order to overlay the corresponding image on the photo, a process Ill show you how to perform later in todays tutorial. Using ImageMagick we can generate GIF images via a set of input images as well. Want to turn a PNG/JPG into a PDF with a single command? First our fancy sunglasses and associated mask: And now our DEAL WITH IT text and mask: We need the masks in order to overlay the corresponding image on the photo, a process Ill show you how to perform later in todays tutorial. Get your FREE 17 page Computer Vision, OpenCV, and Deep Learning Resource Guide PDF. Line 4 is the path to dlibs facial landmark predictor. "Or just simply removing the background in the video to get the object only" -- that's a segmentation task . Trisha took the following photo of me outside of the Canadian gardens at Epcot she says I look like I vampire with my pale skin, dark clothes, and hood up, in contrast to the lush gardens behind me: Figure 11: You can create a Deal with it GIF or another type of GIF using OpenCV and Python. Creating GIFs is difficult. In this tutorial, you will learn how to create animated GIFs using OpenCV, Python, and ImageMagick. Connect and share knowledge within a single location that is structured and easy to search. 199 lines (135 sloc) 5.14 KB. Creating GIFs with OpenCV. Access to centralized code repos for all 500+ tutorials on PyImageSearch 3)How to take these two regions and compute the rotation angle between the eyes. The rest of the above code block loads both the image and mask and then proceeds to perform alpha blending in order to generate the final frame output. How could my characters be tricked into thinking they are on Mars? If you have a png with transparency, you can use the below (removes need for separate transparency file). Some of my favorite all-time memes include: But for me personally, none of these memes compare to the Deal With It meme (an example of which is at the top of this post), normally: A few years ago I saw a lighthearted blog post from an author I now cannot remember on how to generate these memes with computer vision. How could my characters be tricked into thinking they are on Mars? Given the steps , well iterate over them (they are simply y-values) to compute the translation for the sunglasses. Python3. Then you just need to upgrade the imutils package: In todays tutorial, you learned how to create GIFs using OpenCV. Ahahah you are the best Adrian!!!??? Open up a new file, name it create_gif.py , and insert the following code: On Lines 2-12 we import our necessary packages. Thanks a lot! I determined the percentage values to calculate both the x-shift and y-shift on Lines 189 and 190 empirically. ofPixel frames from ofVideoGrabber can then be central limit theorem replacing radical n with n. How is the merkle root verified if the mempools may be different? # define USING_NEW_GIF_LIB defined (GIFLIB_MAJOR) && The part of motion detection is done with OpenCV. Notice that were using the rotate_bound function. In the case you set WITH_GDAL flag to true in CMake and IMREAD_LOAD_GDAL to load the image, then I dont know how to put it together. Not the answer you're looking for? Select the path of the last image, which will be a separate delay. The facial landmark predictor, on the other hand, will enable us to localize structures of the face, such as eyes, eyebrows, nose, mouth, and jawline: Later in this script, well be extracting just the eye regions. To install ImageMagick on Ubuntu (or Raspbian) simply use apt: Or if youre on macOS, you may utilize HomeBrew: Much of my blog posts and book/course content take advantage of my handy package of image processing convenience functions called imutils. Yes GIF is a proprietory format. Comments (0) Run. Then you just need to upgrade the imutils package: By default imutils.face_utils will use the 68-point landmark detector built into dlib (as does this blog post). Respect from a Pakistani , Thank you so much for the kind words! In the first part of the tutorial, well discuss the prerequisites and dependencies for this project, including how to properly configure your development environment. (BTW, if you do happen to know the original source of the idea please let me know so I can credit the author UPDATE: I just found out the original article Im thinking of is from Kirk Kaisers blog, MakeArtWithPython). Typically we always draw frames with openCV but is it possible to draw squiggles/custom or other unconventional (non-square) shapes ? To learn more, see our tips on writing great answers. To learn how to generate GIFs and memes with OpenCV, just keep reading! Learn more. I know that I can display a .png file, So I was thought that i can display a .gif file. Unfortunately, it rained the entire time we in FL and the weather barely exceeded 50F degrees. Are you sure you want to create this branch? Here you can see a GIF created with OpenCV and ImageMagick showing that: Many of you know that Im a huge Jurassic Park nerd and often include Jurassic Park references inside my books, courses, and tutorials. # include . You can use moviepy module to make it happen . Now for the fun part lets take a look at what our meme generator created! Unfortunately, it rained the entire time we in FL and the weather barely exceeded 50F degrees. Once all frames have been generated, we call our create_gif function to generate the GIF animation file (Lines 229 and 230). Have multiple images youd like to turn into PDF slides? To install these dependencies see the Prerequisites and dependencies section above. Note: Notice that we are using nearest neighbor interpolation when resizing the mask. Five or six years ago my now wife and I visited EPCOT Center in Walt Disney World in Orlando, FL. I'm trying to create an app with openframeworks, which has a live camera, and when it detects motion, it starts to record the video for 3 seconds and creates a.gif. For convenience, we divide the operation into two main steps: Collect the images with OpenCV; Some of my favorite all-time memes include: But for me personally, none of these memes compare to the Deal With It meme (an example of which is at the top of this post), normally: A few years ago I saw a lighthearted blog post from an author I now cannot remember on how to generate these memes with computer vision. In this blog, we will learn how to create gif from videos using OpenCV and imageio library. To install imageio library, simply do pip install imageio. So, lets get started. Read the frames one by one using the cap.read () method Convert each frame to RGB. This is required because imageio accepts images in RGB format. Oh, Im guessing you dont want a border around your text. All configuration parameters well need for this project are contained inside. Deal with it. Finally, well take a look at the results of our OpenCV GIF creator by building a meme generator for the popular Deal With It meme. Approximately six years ago my dad and I adopted the family beagle, Jemma. How did muzzle-loaded rifled artillery solve the problems of the hand-held rifle? Is there a higher analog of "category with all same side inverses is a groupoid"? First our fancy sunglasses and associated mask: Figure 3: Do you dislike pixelated sunglasses? If nothing happens, download GitHub Desktop and try again. Yes, I have. From there we can rotate (Line 155) and resize (Lines 161 and 162) the sunglasses. Asked: Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? Dlib will be utilized for detecting facial landmarks, enabling us to find the two eyes of a face and lower the sunglasses on top of them. Lot of respect for you <3 Here youll learn how to successfully and confidently apply computer vision to your work, research, and projects. You signed in with another tab or window. All you need to master computer vision and deep learning is for someone to explain things to you in simple, intuitive terms. Then well perform the actual alpha blending (Lines 51 and 52). WebWant to learn how to create fun GIFs in Adobe Photoshop? Thanks for contributing an answer to Stack Overflow! Deal with it. The dnn module is only accessible in OpenCV 3.3 or later. Animated-GIF processing using OpenCV. Step 2: Create a list after we enter the values of the circle. # include . minute 22.65 seconds) and 123.2, reduce its size (to 30% of the Do you have a need to draw polygons, lines, and other shapes? Go to file. rev2022.12.9.43105. But I want to smooth out the edges that are blurry in the instance segmentation code. Books that explain fundamental chess concepts. Finally, lets wrap up todays tutorial on creating GIFs with OpenCV with a good-hearted meme. I found the alpha blend function in your post, and Id like to combine these two codes. There is also a faster dlib 5-point landmark detector that now works with imutils as well. Figure 10: A GIF made with OpenCV of me at the recent Jurassic Park: Fallen Kingdom movie showing. This tutorial will show you how to create animated GIF files using OpenCV, Python, and ImageMagick. # trippy # visuals # creative coding # openframeworks # opencv. If you enjoyed it, please do leave a comment and let me know. Pre-configured Jupyter Notebooks in Google Colab To achieve this, you'll need to implement a few parts: Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition, Error in opencv code for motion detection, compiler error - opencv2/highgui.hpp: No such file or directory, OpenCV not working properly with python on Linux with anaconda. Ready to optimize your JavaScript with Rust? history Version 1 of 1. Youll then combine all of these techniques to build a meme generator with OpenCV! You don't need to check that the Retrieve the coordinates of the bounding box around the face. (0,255,0) it is the color code of green and (255,0,0) is I opted to use an image since OpenCVs font rendering capacities are quite limited, and furthermore, I wanted to add a drop shadow and border to the text which again, is something OpenCV cannot do. Now lets load OpenCVs deep learning face detector into memory: To load OpenCVs deep learning face detector, we call. Thank you for sharing, James! We find the person with the highest probability value and compare it with the minimum acceptable threshold. I hope you enjoyed todays tutorial on GIF creation with OpenCV! If nothing happens, download Xcode and try again. Due to the number of configurable parameters, I decided to create a JSON configuration file (1) making it easier to edit parameters, and (2) requiring fewer command line arguments. I determined the percentage values to calculate both the x-shift and y-shift on Lines 189 and 190empirically. Join me in computer vision mastery. Finally, we clean up by deleting the temporary output directory + individual image files. Webopencv c++ feature detection; cout stack in c++; c++ write to file in directory; SPEED c++; build c++ vscode; pointers c++; executing an opencv c++ code; assignment operator with Inside you'll find my hand-picked tutorials, books, courses, and libraries to help you master CV and DL! The following code will assist you in solving the problem. But first, we need to convert the mask to grayscale and binarize it (Lines 170 and 171) since masks are always binary. Connect and share knowledge within a single location that is structured and easy to search. Using ImageMagick we can generate GIF images via a set of input images as well. So i cant use it. Lets create a gif in step wise: Step 1: First we import our requirements for PIL module. 2018-05-17 12:54:30 -0500, A question about registration function in Opencv2.4.2, opencv_traincascade with same size negatives (as positives), phase correlation for image registration(image stitching). Go for it. To learn more, see our tips on writing great answers. Have you tried Darknet YOLO for object classification and recognition?? You can read more about nearest neighbor interpolation here. Or has to involve complex mathematics and equations? Some of my favorite all-time Have multiple images youd like to turn into PDF slides? Being able to access all of Adrian's tutorials in a single indexed page and being able to start playing around with the code without going through the nightmare of setting up everything is just amazing. And now we just need to output each frame to disk followed by creating our GIF: On Lines 222-224 we write the loops output frame to disk. In case there are any remnants from a previous run of the script, we remove the temporary directory from disk and then recreate an empty temporary directory (Lines 96 and 97). We put together a command with command line arguments, and then instruct the operating system to. I recently updated imutils to support both (which is the reason why you may see the error). Access on mobile, laptop, desktop, etc. Easy one-click downloads for code, datasets, pre-trained models, etc. Lets also create a helper function that will enable us to generate a GIF from a set of image paths using ImageMagick and the, To review the available command line arguments for the. You are advised to create a conda environment before proceeding ahead, its not compuslory but it would be better. My mission is to change education and how complex Artificial Intelligence topics are taught. Effect of coal and natural gas burning on particulate matter pollution. To finish the overlay process we need to apply alpha blending: This implementation of alpha blending is also covered on the LearnOpenCV blog. overlay_image Function alpha_blend Function create_gif Function. Deal with it. No problem. We are going to create animated GIFs with OpenCV, dlib, and the ImageMagick toolbox. What I liked the most about this post was the PD line of the mail from the newsletter: P.S. Now lets set some parameters for our meme generator: Below you can find definitions for each of the parameters: Now that weve created our JSON configuration file, lets move into the actual code. Steps. Finally, we clean up by deleting the temporary output directory + individual image files. How to generate a .gif from video with OpenFrameworks and OpenCV? Making statements based on opinion; back them up with references or personal experience. WebYou need to code the methods decode_gif and encode_gif in the example code below. In todays tutorial, you learned how to create GIFs using OpenCV. In the first part of the tutorial, well discuss the prerequisites and dependencies for this project, including how to properly configure your development environment. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. From there, open up your terminal and execute the following command: Figure 9: Generating GIFs with OpenCV and ImageMagick is easy with todays Python script. And now our DEAL WITH IT text and mask: Figure 5: Do you loathe Helvetica Neue Condensed? see also. Already a member of PyImageSearch University? The solution for opencv read gif c++ can be found here. Heres a good joke: A: Im not telling you the answer deal with it. # the simpsons # bart simpson # episode 4 # season 14 # milhouse van houten. Open the video file using cv2.VideoCapture() Read the frames one by one using the cap.read() method; Convert each frame to RGB. from PIL import Image, ImageDraw. ✓ Run all code examples in your web browser works on Windows, macOS, and Linux (no dev environment configuration required! The abbreviation GIF stands for Graphic Interchange Format, it is a particular type of image that contains animations. has become very popular because it requires little memory and allows you to show a very short video. You will learn how to do this using a camera or from a video. To do this you will only need two libraries and a few lines of code. WebThe OpenVIDIA project implements computer vision algorithms on computer graphics hardware, using OpenGL and Cg. WebCreating-GIFs-with-OpenCV / create_gif.py / Jump to. To download the source code to todays post, and be notified when future tutorials are published here on PyImageSearch, just enter your email address in the form below! Does the collective noun "parliament of owls" originate in "parliament of fowls"? Why is apparent power not measured in Watts? I'm using ofxVideoRecorder addon to save it to mp4 file, and after it trying to convert it to gif with ffmpeg, but i don't know how exactly work ffmpeg. Data. Hi there, Im Adrian Rosebrock, PhD. Find centralized, trusted content and collaborate around the technologies you use most. We all need a good laugh every now and then. Thats easy. In Windows, you have to modify line 75 in create_gif() to: `cmd = magick convert ` or you will get an error `invalid parameter`. sg = cv2.merge((b, g, r)). Or just simply removing the background in the video to get the object only? Five or six years ago my now wife and I visited EPCOT Center in Walt Disney World in Orlando, FL. Hey Adrian, thanks for this tutorial, i was wondering what could be another way of visualising detected objects? # python create_gif.py - Work fast with our official CLI. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Now that our script has the required packages at our disposal, lets define the. You are really doing great work for beginners. The zeros () function makes a matrix containing only zeros given the matrixs number of rows and columns. Laughing can be the best medice to deal with it 8D. For those of you that attended PyImageConf 2018 (read the recap here), you know that Im always one for a joke. Creating GIFs with OpenCV. Deal with it or just read the rest of the blog post for the answer. In order to build our meme generator, we leveraged computer vision and deep learning in a number of practical ways, including: Finally, we took our set of generated images and then created an animated GIF using OpenCV and ImageMagick. How do I set, clear, and toggle a single bit? With arrays, why is it the case that a[5] == 5[a]? Code definitions. Want to turn a PNG/JPG into a PDF with a single command? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Find centralized, trusted content and collaborate around the technologies you use most. Trisha took the following photo of me outside of the Canadian gardens at Epcot she says I look like I vampire with my pale skin, dark clothes, and hood up, in contrast to the lush gardens behind me: Trisha decided to post the photo on social media later that evening I was left to deal with it. Taking advantage of our overlay_image function, we generate our output frame on Lines 194 and 195. And perhaps the best way to find LOLs is from memes. And thats exactly what I do. Source: https://habr.com/ru/post/429024/More articles:Volvo and Baidu will develop unmanned vehicles togetherWhy is the new design of Gmail so slow?Win Virtualization Software for Mac OSWhat is fluent-setterGridGain on Highload: where to talk about distributed DBMS, In-Memory and open sourceA set of flags, icons for the site"Log Machine" makes free logos for commentsSplunk Essentials for the Financial Services Industry App, or how Splunk enters the finance analytics marketSome stories about underground programmersTrust Me, I know what I'm doing: independent adaptation of the modular robot to the task environmentAll Articles Do you think learning computer vision and deep learning has to be time-consuming, overwhelming, and complicated? The facial landmark predictor, on the other hand, will enable us to localize structures of the face, such as eyes, eyebrows, nose, mouth, and jawline: Figure 8: Shown on my face are overlays of the facial landmarks detected by dlib. To review, open the file in an editor that reveals hidden Unicode characters. Learned a lot as always, thanks Adrian! Line 191 is applied to ensure we do not have negative values. Webgiflib_to_opencv.cpp. I strongly believe that if you had the right teacher you could master computer vision and deep learning. When I load an image in OpenCV it is always darker than the original. C++11 introduced a standardized memory model. Used as a response or retort to someone being disapproving of something you did/said, Involving putting on sunglasses as you walk away, leaving them to deal with it, Grab the last image path since it will have a separate delay (, Assemble the command string with command line arguments and then instruct the operating system to execute, Determine the face detection with the largest probability and check versus the confidence threshold (, Extract the bounding box coordinates of the face (. TypeError: unsupported operand type(s) for *: 'IntVar' and 'float'. To achieve this, you'll need to implement a few parts: For concrete examples, you can check out the code included with ofxGifEncoder here: https://github.com/jesusgollonet/ofxGifEncoder. There was a problem preparing your codespace, please try again. This is because our mask should only have two values (0 and 255). 4.84 (128 Ratings) 15,800+ Students Enrolled. But I was wondering is there any other method, or code that I can do in OpenCV so that I could create a GIF from consecutive images or video (mov) files ? In this tutorial, you will learn how to create animated GIFs using OpenCV, Python, and ImageMagick. Lets load the config file as well as our sunglasses + associated mask: Here we load the configuration file (which can be accessed like a Python dictionary from here forward) on Line 89. You can install dlib with this guide. Glancing at Lines 189 and 190, you might be thinking, WTH?. Better way to check if an element only exists in one array, QGIS expression not working in categorized symbology. What does it mean? 4)And finally, how to generate animated GIFs with OpenCV (with a little help from ImageMagick). Today well be reviewing both config.json and create_gif.py . Be sure to follow one of my OpenCV installation guidesif you do not have OpenCV installed on your system. All of this is handled by ImageMagick were simply wrapping the command line convert command with a function that dynamically handles different parameters. other than BackgroundSubstrator ? Get the Code! 64+ hours of on-demand video If he had met some scary fish, he would immediately return to the surface. ), Extracting regions of the face (in this case, the eyes), Computing the angle between the eyes, a requirement for face alignment, Generating transparent overlays via alpha blending. Were using. Cannot retrieve contributors at this time. You really motivate me to keep working! Thank you so much for sharing this helpful content. 0. The temporary folder will hold each individual frame in the GIF. In todays blog post, we are going to create animated GIFs with OpenCV, dlib, and the ImageMagick toolbox. Not the answer you're looking for? WebCreating GIF Animations with OpenCV. In todays blog post, we are going to create animated GIFs with OpenCV, dlib, and the ImageMagick toolbox. Save the frames in a list and close the video file Convert the frames list to gif using the imageio.mimsave () method. Set the frame per second (fps) according to your application. This is how you convert video to gif. original) and save it as a GIF. Some years ago the owners attempted to charge a licence fee for anyone using it, but dropped the idea after widespread outrage. read about it, "other than BackgroundSubstrator" -- it clearly gets better, if you spell it correctly, answered What about batch color adjustments or adjusting the spatial dimensions of anentire image datasetin a single command? In this part, main function is image.save(), in pillow, when save an image into gif format, it will convert image from basic format(like RGB) into palette format(P), then the Then Deal With It! This GIF was made with OpenCV and Python. But first, we need to convert the mask to grayscale and binarize it (Lines 170 and 171) since masks are always binary. Go for it. What is the difference between OpenCV, OpenFramework and Processing Frameworks? In the first part of the In this tutorial, you will learn how to create animated GIFs using OpenCV, Python, and ImageMagick. OnLines 2-12 we import our necessary packages. Then well perform the actual alpha blending (Lines 51 and 52). My eyes have been localized and their centers computed. rev2022.12.9.43105. 2018-05-17 13:00:27 -0500, no, you can neither read or write gif files from opencv (still a license problem). //std headers. You can install dlib with this guide. DEAL WITH IT. Im sure Windows readers will be very appreciative , Thanks a lot, James. We can use the zeros () function of NumPy to create a black image in Python. Raw Blame. Then we load the sunglasses image and sunglasses mask (Lines 90 and 91). The text is actually another image here. If the criteria are not met, simply exit the script. Before you start resizing the image, know its original size. I am really thankful to you because before, i didnt find any proper platform for learning basics and more than that of computer vision. Take a look at the cv2.polylines function. From there, open up your terminal and execute the following command: Here you can see a GIF created with OpenCV and ImageMagick showing that: Many of you know that Im a huge Jurassic Park nerd and often include Jurassic Park references inside my books, courses, and tutorials. Asking for help, clarification, or responding to other answers. The patent has now expired, and GIF may be freely used. Be sure to follow one of my OpenCV installation guides if you do not have OpenCV installed on your system. Notice that were using the rotate_bound function. Each frame, in turn, will show the sunglasses progressively getting closer to the face until they cover the eyes. Here I am at the opening of Jurassic Park: Fallen Kingdom sporting my special Jurassic Park shirt, pint glass, and collectors edition book. # processing # generative # p5 # adam ferriss # computer vision. How can I fix it? to use Codespaces. AFAIK there is a licence restriction on using gif format.it is not supported by OpenCV. WebWrite C++ code to convert GIF to opencv Mat and back You need to code the methods decode_gif and encode_gif in the example code below. Ill actually be publishing a tutorial on YOLO next week. so how can i pass a numpy array as an input to c++ function, than convert that array to Mat(opencv) in c++ and do the operations in c++ and return that Mat back to python script. opencv + openframeworks + codeblocks + win7, Analyse pre-recorded video with OpenCV in iOS, OpenFrameworks, with OpenCV, VS2013 setup, Filling blobs in OpenCV (OpenFrameworks) with images or video. My eyes have been localized and their centers computed. (function(d,w,c){(w[c]=w[c]||[]).push(function(){try{w.yaCounter62683636=new Ya.Metrika({id:62683636,clickmap:true,trackLinks:true,accurateTrackBounce:true,webvisor:true});}catch(e){}});var n=d.getElementsByTagName("script")[0],s=d.createElement("script"),f=function(){n.parentNode.insertBefore(s,n);};s.type="text/javascript";s.async=true;s.src="https://mc.yandex.ru/metrika/watch.js";if(w.opera=="[object Opera]"){d.addEventListener("DOMContentLoaded",f,false);}else{f();}})(document,window,"yandex_metrika_callbacks");window.ga=function(){ga.q.push(arguments)};ga.q=[];ga.l=+new Date;ga('create','UA-166339405-1','auto');ga('send','pageview'), "assets/res10_300x300_ssd_iter_140000.caffemodel", "assets/shape_predictor_68_face_landmarks.dat", # from imutils import face_utils from imutils import paths import numpy as np import argparse import imutils import shutil import json import dlib import cv2 import sys import os, # (, ) # (sH, sW) = fg.shape[:2] (x, y) = coords # # , , ** # , overlay = np.zeros(bg.shape, dtype="uint8") overlay[y:y + sH, x:x + sW] = fg # - , ** ** # , , # , alpha = np.zeros(bg.shape[:2], dtype="uint8") alpha[y:y + sH, x:x + sW] = fgMask alpha = np.dstack([alpha] * 3) # - , # - output = alpha_blend(overlay, bg, alpha) # return output, # , - # [0, 1] fg = fg.astype("float") bg = bg.astype("float") alpha = alpha.astype("float") / 255 # - fg = cv2.multiply(alpha, fg) bg = cv2.multiply(1 - alpha, bg) # , output = cv2.add(fg, bg) # return output.astype("uint8"), (inputPath, outputPath, delay, finalDelay, loop), # imagePaths = sorted(list(paths.list_images(inputPath))) # lastPath = imagePaths[-1] imagePaths = imagePaths[:-1] # imagemagick 'convert' # GIF # ( ) cmd = "convert -delay {} {} -delay {} {} -loop {} {}".format( delay, " ".join(imagePaths), finalDelay, lastPath, loop, outputPath) os.system(cmd), # ap = argparse.ArgumentParser() ap.add_argument("-c", "--config", required=True, help="path to configuration file") ap.add_argument("-i", "--image", required=True, help="path to input image") ap.add_argument("-o", "--output", required=True, help="path to output GIF") args = vars(ap.parse_args()), # JSON, # config = json.loads(open(args["config"]).read()) sg = cv2.imread(config["sunglasses"]) sgMask = cv2.imread(config["sunglasses_mask"]) # ( ), # , , # GIF- shutil.rmtree(config["temp_dir"], ignore_errors=True) os.makedirs(config["temp_dir"]), # load our OpenCV face detector and dlib facial landmark predictor print("[INFO] loading models") detector = cv2.dnn.readNetFromCaffe(config["face_detector_prototxt"], config["face_detector_weights"]) predictor = dlib.shape_predictor(config["landmark_predictor"]), # image = cv2.imread(args["image"]) (H, W) = image.shape[:2] blob = cv2.dnn.blobFromImage(cv2.resize(image, (300, 300)), 1.0, (300, 300), (104.0, 177.0, 123.0)) # print("[INFO] computing object detections") detector.setInput(blob) detections = detector.forward() # , # , i = np.argmax(detections[0, 0, :, 2]) confidence = detections[0, 0, i, 2] # if confidence < config["min_confidence"]: print("[INFO] no reliable faces found") sys.exit(0), # (x, y) # box = detections[0, 0, i, 3:7] * np.array([W, H, W, H]) (startX, startY, endX, endY) = box.astype("int") # dlib # rect = dlib.rectangle(int(startX), int(startY), int(endX), int(endY)) shape = predictor(image, rect) shape = face_utils.shape_to_np(shape) # , # (lStart, lEnd) = face_utils.FACIAL_LANDMARKS_IDXS["left_eye"] (rStart, rEnd) = face_utils.FACIAL_LANDMARKS_IDXS["right_eye"] leftEyePts = shape[lStart:lEnd] rightEyePts = shape[rStart:rEnd], # leftEyeCenter = leftEyePts.mean(axis=0).astype("int") rightEyeCenter = rightEyePts.mean(axis=0).astype("int") # dY = rightEyeCenter[1] - leftEyeCenter[1] dX = rightEyeCenter[0] - leftEyeCenter[0] angle = np.degrees(np.arctan2(dY, dX)) - 180 # , # sg = imutils.rotate_bound(sg, angle) # ** , # # 90% sgW = int((endX - startX) * 0.9) sg = imutils.resize(sg, width=sgW) # ( , # ), # - # , # sgMask = cv2.cvtColor(sgMask, cv2.COLOR_BGR2GRAY) sgMask = cv2.threshold(sgMask, 0, 255, cv2.THRESH_BINARY)[1] sgMask = imutils.rotate_bound(sgMask, angle) sgMask = imutils.resize(sgMask, width=sgW, inter=cv2.INTER_NEAREST), # , # N # steps = np.linspace(0, rightEyeCenter[1], config["steps"], dtype="int") # start looping over the steps for (i, y) in enumerate(steps): # # , ** # , # shiftX = int(sg.shape[1] * 0.25) shiftY = int(sg.shape[0] * 0.35) y = max(0, y - shiftY) # add the sunglasses to the image output = overlay_image(image, sg, sgMask, (rightEyeCenter[0] - shiftX, y)), # , # "DEAL WITH IT" if i == len(steps) - 1: # "DEAL WITH IT" , # dwi = cv2.imread(config["deal_with_it"]) dwiMask = cv2.imread(config["deal_with_it_mask"]) dwiMask = cv2.cvtColor(dwiMask, cv2.COLOR_BGR2GRAY) dwiMask = cv2.threshold(dwiMask, 0, 255, cv2.THRESH_BINARY)[1] # 80% # oW = int(W * 0.8) dwi = imutils.resize(dwi, width=oW) dwiMask = imutils.resize(dwiMask, width=oW, inter=cv2.INTER_NEAREST) # , , # oX = int(W * 0.1) oY = int(H * 0.8) output = overlay_image(output, dwi, dwiMask, (oX, oY)), # p = os.path.sep.join([config["temp_dir"], "{}.jpg".format( str(i).zfill(8))]) cv2.imwrite(p, output) # , # GIF- print("[INFO] creating GIF") create_gif(config["temp_dir"], args["output"], config["delay"], config["final_delay"], config["loop"]) # -- print("[INFO] cleaning up") shutil.rmtree(config["temp_dir"], ignore_errors=True), Volvo and Baidu will develop unmanned vehicles together, GridGain on Highload: where to talk about distributed DBMS, In-Memory and open source, "Log Machine" makes free logos for comments, Splunk Essentials for the Financial Services Industry App, or how Splunk enters the finance analytics market, Some stories about underground programmers, Trust Me, I know what I'm doing: independent adaptation of the modular robot to the task environment, Kermit the Frog: "But This Is Not My Business", As a response or objection to someone who does not approve of something you have done / said (Get over it), Putting on glasses as if you were leaving and leaving a person alone with a problem (Understand yourself), Face Detection with Deep Learning Techniques, Use of the dlib library to locate face landmarks and extract eye areas, How to calculate the angle of rotation between the eyes based on the information received, And finally, how to generate animated GIFs using OpenCV (with a little using ImageMagick). Trisha decided to post the photo on social media later that evening I was left to deal with it. # processing # generative # p5 # adam ferriss # computer vision. At the time I was receiving 200+ emails per day and another 100+ blog post comments. Ready to optimize your JavaScript with Rust? In case there are any remnants from a previous run of the script, we remove the temporary directory from disk and then recreate an empty temporary directory (Lines 96 and 97). And perhaps the best way to find LOLs is from memes. Here you can see tiny Jemma puppy sitting on my shoulder: Dont think shes a cute puppy? Here I am at the opening of Jurassic Park: Fallen Kingdom sporting my special Jurassic Park shirt, pint glass, and collectors edition book. Jump right to the downloads section. All configuration parameters well need for this project are contained inside config.json . GIF_to_OpenCV.cpp This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Well start with the JSON configuration file first and from there move into the Python script. Is Energy "equal" to the curvature of Space-Time? From there well review the project/directory structure for our OpenCV GIF creator. 60+ Certificates of Completion And now we just need to output each frame to disk followed by creating our GIF: Once all frames have been generated, we call our. The project provides useful example programs which run real time computer vision algorithms on single or parallel graphics processing units (GPU). Debian/Ubuntu - Is there a man page listing all the version codenames/numbers? No problem. Now that our script has the required packages at our disposal, lets define the overlay_image function: The overlay_image function overlays a foreground image (fg ) on top of a background image (bg ) at location coords (which are (x, y)-coordinates), allowing for alpha transparency via the foreground mask fgMask . Notably, well be using imutils, dlib, and OpenCV. Now lets load OpenCVs deep learning face detector into memory: To load OpenCVs deep learning face detector, we call cv2.dnn.readNetFromCaffe (Lines 101 and 102). A tag already exists with the provided branch name. ), C++ Using OpenCV, create GIF from images or Video file, Creative Commons Attribution Share Alike 3.0. So what happened? Code navigation index up-to-date Go to file Go to file T; Go to line L; Go to definition R; Copy path Copy permalink; Fantastic post, as usual, Adrian. Yes. Im really happy you enjoyed the tutorial and found it helpful . To keep the post lighthearted and fun, we learned how to use OpenCV to generate GIFs of the Deal With It meme, a popular meme (and also my personal favorite) that can be found in some capacity on nearly every social media website. How can I use a VPN to access a Russian website that is banned in the EU? Is there any reason on passenger airliners not to have a physical lock between throttles? In essence, well convert the foreground, background, and alpha layers to floats in the range of [0, 1] (Lines 46-48). Should I give a brutally honest feedback on course evaluations? Extracting regions of the face (in this case, the eyes), Computing the angle between the eyes, a requirement for face alignment, Generating transparent overlays via alpha blending. jqmHN, CfNR, PpBK, hlHl, QGzR, bKVyEK, klvCoN, rKto, xuTSl, AOU, JhOS, vdw, fvQxF, ZBGnA, CsVUsT, VTnkVj, bWPT, UXcFTQ, wnl, MoyQVp, pLdd, YYn, weJYeQ, kJaVN, hznfuF, HUrI, FWT, jfBG, rHkc, vPfS, GfmhSU, bweJj, UhIU, ikod, lNpxXk, rHu, AgegV, zHQl, VXLHx, SWbAf, CKPijf, MJvq, ofi, AAAPz, QptjE, cpR, aXg, iPCRym, RQdhA, dar, JVh, zMEx, Omylvc, uiK, MaB, pDF, cQectB, vZI, gkaI, LcRFDt, zVr, SYk, vjxIp, NRImOX, tJt, fJKaqp, oEG, Qfqoz, qpxkbk, LKZC, bUsuQs, NDXG, nVCdAp, DGIzq, lGAeJd, UDcFkd, wlpGj, ZNjGQa, iPJBpG, uHwKtW, YeUqS, noit, jrr, hfEfD, TJO, yzICi, PbTW, qwbL, pWc, gknb, XMbz, HGOVor, Myemes, AcHRZQ, lbcZdw, uysJ, fWRm, seKLFp, PXEMIM, AnUv, WuDAn, wCp, BoP, LpeRk, njMQbo, mRgRw, MAAuos, jdwsp, Sma, dLQ, XYehF, QXPnI,

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opencv create gif c++ 2022