Join me in computer vision mastery. If you arent familiar with ImageMagick, you should be. computer vision skills that are used in the real world. If nothing happens, download Xcode and try again. 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! 1 input and 0 output. To finish the overlay process we need to apply alpha blending: This implementation of alpha blending is also covered on the LearnOpenCV blog. 2018-05-17 13:00:27 -0500, no, you can neither read or write gif files from opencv (still a license problem). The following code will assist you in solving the problem. Change vector pxs; to read vector pxs; Thanks for contributing an answer to Stack Overflow! In Windows, you have to modify line 75 in create_gif() to: `cmd = magick convert ` or you will get an error `invalid parameter`. Line 191 is applied to ensure we do not have negative values. To achieve this, you'll need to implement a few parts: The temporary folder will hold each individual frame in the GIF. OpenCV will be used for face detection and basic image processing. We are going to create animated GIFs with OpenCV, dlib, and the ImageMagick toolbox. Inside youll find our hand-picked tutorials, books, courses, and libraries to help you master CV and DL. Find centralized, trusted content and collaborate around the technologies you use most. What about batch color adjustments or adjusting the spatial dimensions of anentire image datasetin a single command? Stay tuned! Making statements based on opinion; back them up with references or personal experience. 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. 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. I strongly believe that if you had the right teacher you could master computer vision and deep learning. Continue exploring. GIF_to_OpenCV.cpp This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Some of my favorite all-time Figure 1: To create GIFs with OpenCV well be taking advantage of OpenCV, dlib, and ImageMagick. TypeError: unsupported operand type(s) for *: 'IntVar' and 'float'. We all need a good laugh every now and then. 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. "Or just simply removing the background in the video to get the object only" -- that's a segmentation task . Are there breakers which can be triggered by an external signal and have to be reset by hand? To review, open the file in an editor that reveals hidden Unicode characters. Cell link copied. 2)How to use the dlib library to apply facial landmark detection and extract the eye regions. Taking advantage of our overlay_image function, we generate our output frame on Lines 194 and 195. # include . A tag already exists with the provided branch name. Effect of coal and natural gas burning on particulate matter pollution. You don't need to check that the input file contains a GIF image, and you don't need to support any other image formats - only GIF. How to generate a .gif from video with OpenFrameworks and OpenCV? Take a look at the cv2.polylines function. Cannot retrieve contributors at this time. Have you tried Darknet YOLO for object classification and recognition?? Now for the fun part lets take a look at what our meme generator created! Do you have a need to draw polygons, lines, and other shapes? 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. history Version 1 of 1. Approximately six years ago my dad and I adopted the family beagle, Jemma. C++11 introduced a standardized memory model. I simply did not have the time to moderate and respond to them all, and the sheer volume of requests was taking a toll on me. WebNote that in the C++ snippet, you first created a matrix for the image, then used the imread() function to read it. Comments (0) Run. But after reading your blog I can solve my problem. Lot of respect for you <3 Once enough motion is detected, begin sending the. In the first part of the Want to turn a PNG/JPG into a PDF with a single command? Thanks and keep sharing. To achieve this, you'll need to implement a few parts: A video grabber input with ofVideoGrabber. Better way to check if an element only exists in one array, QGIS expression not working in categorized symbology. Run all code examples in your web browser works on Windows, macOS, and Linux (no dev environment configuration required!) Figure 7: The OpenCV DNN face detector finds faces in images. This is handled on Lines 178 and 179 where we take advantage of NumPys linspace function effortlessly. Theres no point in writing multiple lines of Python to use OpenCV for that. Youll then combine all of these techniques to build a meme generator with OpenCV! if you're happy with imagemagic (it also sounds, you're not trying to do any computer-vision at all) -- stick with that. cv2.imread(image.gif) is not possible.But there are many other alternatives to insert a GIF, You can use moviepy module to make it happen, Here is an example: The remaining three code blocks will create the frames of our GIF: Our sunglasses will drop down from the top of the image. We decided to take the trip to get away from the harsh Connecticut winters we were in desperate need of sunlight. At the time I was receiving 200+ emails per day and another 100+ blog post comments. 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. I hope you enjoyed todays tutorial on GIF creation with OpenCV! My eyes have been localized and their centers computed. Hi there, Im Adrian Rosebrock, PhD. Now that our script has the required packages at our disposal, lets define the. To review OpenCV basics such as working with masks, be sure to give this tutorial a read. Once we understand the project structure well review (1) our configuration file, and (2) our Python script responsible for creating GIFs with OpenCV. Access to centralized code repos for all 500+ tutorials on PyImageSearch WebCreating-GIFs-with-OpenCV/create_gif.py /Jump to. 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. So, lets get started. 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. 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. rev2022.12.9.43105. sg = cv2.imread(config[sunglasses], -1), b, g, r, a = cv2.split(sg) (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). WebThe OpenVIDIA project implements computer vision algorithms on computer graphics hardware, using OpenGL and Cg. Deal with it. 0. All you have to do is remove the #include ofxGifFrame.h and it works. Finally, lets wrap up todays tutorial on creating GIFs with OpenCV with a good-hearted meme. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Here I am at the opening of Jurassic Park: Fallen Kingdom sporting my special Jurassic Park shirt, pint glass, and collectors edition book. Is Energy "equal" to the curvature of Space-Time? 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. Or has to involve complex mathematics and equations? Have multiple images youd like to turn into PDF slides? We all need a good laugh every now and then. 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. I was stuck and this info helped me . Notice that were using the rotate_bound function. The sunglasses are correctly lowered down across my face. The text is actually another image here. Learn more. Thanks a lot! You are really doing great work for beginners. In essence, well convert the foreground, background, and alpha layers to floats in the range of [0, 1] (Lines 46-48). Error message, blank window, crash? 60+ total classes 64+ hours of on demand video Last updated: Dec 2022 Open up a new file, name it create_gif.py , and insert the following code: On Lines 2-12 we import our necessary packages. I tried but I cant create the perfect one GIF. Open the video file using cv2.VideoCapture() Read the frames one by one using the cap.read() method; Convert each frame to RGB. Inside you'll find my hand-picked tutorials, books, courses, and libraries to help you master CV and DL! 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. 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. did anything serious ever run on the speccy? rev2022.12.9.43105. Be sure to follow one of my OpenCV installation guides if you do not have OpenCV installed on your system. Is this an at-all realistic configuration for a DHC-2 Beaver? Good tutorial! The text is actually another image here. 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. Hi, Adrian. 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. Jump right to the downloads section. Webgiflib_to_opencv.cpp. to use Codespaces. Each frame, in turn, will show the sunglasses progressively getting closer to the face until they cover the eyes. 60+ courses on essential computer vision, deep learning, and OpenCV topics Last week I couldnt find the tutorial anywhere, so, as a blogger, computer vision expert, and meme connoisseur, I decided to create my own! Ready to optimize your JavaScript with Rust? To install imageio library, simply do pip install imageio. To learn more, see our tips on writing great answers. There was a problem preparing your codespace, please try again. In todays blog post, we are going to create animated GIFs with OpenCV, dlib, and the ImageMagick toolbox. Given the steps , well iterate over them (they are simply y-values) to compute the translation for the sunglasses. Then we load the sunglasses image and sunglasses mask (Lines 90 and 91). Deal with it, Nice one!!! The part of motion detection is done with OpenCV. 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). Your post is helpful. Why is apparent power not measured in Watts? Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. To learn how to generate GIFs and memes with OpenCV, just keep reading! (0,255,0) it is the color code of green and (255,0,0) is What is an undefined reference/unresolved external symbol error and how do I fix it? To review OpenCV basics such as working with masks, be sure to give this tutorial a read. 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 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. opencv_traincascade with same size negatives (as positives) phase correlation for image registration(image stitching) Does OpenCV provide Connected Data. 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 do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Lets go ahead and get started implementing our OpenCV GIF generator! 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. Then Deal With It! This GIF was made with OpenCV and Python. Find centralized, trusted content and collaborate around the technologies you use most. OpenCV 2.0 C++ API using imshow: returns unhandled exception and "bad-flag". Once all frames have been generated, we call our create_gif function to generate the GIF animation file (Lines 229 and 230). 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 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. Here you can see tiny Jemma puppy sitting on my shoulder: Dont think shes a cute puppy? Today well be reviewing both config.json and create_gif.py . For those of you that attended PyImageConf 2018 (read the recap here), you know that Im always one for a joke. Looking for the source code to this post? Learned a lot as always, thanks Adrian! 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. (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). The patent has now expired, and GIF may be freely used. 4)And finally, how to generate animated GIFs with OpenCV (with a little help from ImageMagick). No problem. Debian/Ubuntu - Is there a man page listing all the version codenames/numbers? Last week I couldnt find the tutorial anywhere, so, as a blogger, computer vision expert, and meme connoisseur, I decided to create my own! Or requires a degree in computer science? ), C++ Using OpenCV, create GIF from images or Video file, Creative Commons Attribution Share Alike 3.0. from PIL import Image, ImageDraw. Course information: # the simpsons # bart simpson # episode 4 # season 14 # milhouse van houten. I found the alpha blend function in your post, and Id like to combine these two codes. The dnn module is only accessible in OpenCV 3.3 or later. ofxGifFrame is a struct within the ofxGifEncoder header. All configuration parameters well need for this project are contained inside config.json . Python3. 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. Should teachers encourage good students to help weaker ones? OnLines 2-12 we import our necessary packages. Creating GIFs is difficult. Later in this script, well be extracting just the eye regions. We all need a good laugh every now and then. # processing # generative # p5 # adam ferriss # computer vision. OpenCV will be used for face detection and basic image processing. Thanks for contributing an answer to Stack Overflow! 10/10 would recommend. 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. If the criteria are not met, simply exit the script. You can read more about nearest neighbor interpolation here. Lets go ahead and get started implementing our OpenCV GIF generator! 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. Localization of the eyes and the calculation of their centers. Note:Notice that we are using nearest neighbor interpolation when resizing the mask. Is there any reason on passenger airliners not to have a physical lock between throttles? # USAGE. Then well perform the actual alpha blending (Lines 51 and 52). If you have a png with transparency, you can use the below (removes need for separate transparency file). By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. Asked: Fantastic post, as usual, Adrian. The same operations we applied to the sunglasses themselves need to be applied to the mask. You can install dlib with this guide. Other interpolation methods may be more aesthetically pleasing to the eye but will actually be harmful to our mask. Now lets load OpenCVs deep learning face detector into memory: To load OpenCVs deep learning face detector, we call. Converting a video excerpt into a GIF, Then a video file is opened and selected the part between 122.65 (1 Link for moviepy . Want to turn a PNG/JPG into a PDF with a single command? 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. WebIn this blog, we will learn how to create gif from videos using OpenCV and imageio library. sign in And perhaps the best way to find LOLs is from memes. unfortunately there is no direct gif support in opencv. Enter your email address below to learn more about PyImageSearch University (including how you can download the source code to this post): PyImageSearch University is really the best Computer Visions "Masters" Degree that I wish I had when starting out. How do I set, clear, and toggle a single bit? There is also a faster dlib 5-point landmark detector that now works with imutils as well. 60+ Certificates of Completion But first, we need to convert the mask to grayscale and binarize it (Lines 170 and 171) since masks are always binary. You can install dlib with this guide. # trippy # visuals # creative coding # openframeworks # opencv. 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. 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 I created this website to show you what I believe is the best possible way to get your start. AFAIK there is a licence restriction on using gif format.it is not supported by OpenCV. WebCreating-GIFs-with-OpenCV / create_gif.py / Jump to. The face detector will enable us to detect the presence of faces in images: Then, on Line 103, we load dlibs facial landmark predictor. In an 8-bit image, a single pixel can have 256 multiplied by 256 multiplied by 255 different colors. Get the Code! ofPixel frames from ofVideoGrabber can then be You signed in with another tab or window. To install these dependencies see the Prerequisites and dependencies section above. read about it, "other than BackgroundSubstrator" -- it clearly gets better, if you spell it correctly, answered Finally, lets wrap up todays tutorial on creating GIFs with OpenCV with a good-hearted meme. Can you give me a hint? Why? # include . Why is the federal judiciary of the United States divided into circuits? Do you think learning computer vision and deep learning has to be time-consuming, overwhelming, and complicated? central limit theorem replacing radical n with n. How is the merkle root verified if the mempools may be different? All configuration parameters well need for this project are contained inside. Animated-GIF processing using OpenCV. And perhaps the best way to find LOLs is from memes. 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? 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. Didnt like todays tutorial? And how is it going to affect C++ programming? Step 2: Create a list after we enter the values of the circle. Notice that were using the rotate_bound function. 4.84 (128 Ratings) 15,800+ Students Enrolled. You don't need to check that the Then combine these methods to create a 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; Brand new courses released every month, ensuring you can keep up with state-of-the-art techniques Did neanderthals need vitamin C from the diet? I have to create a (openCV) image processing function in C++ and have to call that function from python using ctypes. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Figure 4: Are you wondering WTH this sunglasses mask is for? We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Does integrating PDOS give total charge of a system? (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). Dont think so? From there we can rotate (Line 155) and resize (Lines 161 and 162) the sunglasses. In todays blog post, we are going to create animated GIFs with OpenCV, dlib, and the ImageMagick toolbox. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Get your FREE 17 page Computer Vision, OpenCV, and Deep Learning Resource Guide PDF. This Notebook has been released under the Apache 2.0 open source license. In todays blog post, we are going to create animated GIFs with OpenCV, dlib, and the ImageMagick toolbox. Some years ago the owners attempted to charge a licence fee for anyone using it, but dropped the idea after widespread outrage. No problem. 3)How to take these two regions and compute the rotation angle between the eyes. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. So i cant use it. Pre-configured Jupyter Notebooks in Google Colab ofxGifFrame is a struct within the ofxGifEncoder header. All you have to do is remove the #include ofxGifFrame.h and it works. You will also have t 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. Asking for help, clarification, or responding to other answers. original) and save it as a GIF. # define USING_NEW_GIF_LIB defined (GIFLIB_MAJOR) && sg = cv2.merge((b, g, r)). Lets create a gif in step wise: Step 1: First we import our requirements for PIL module. 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. Then you just need to upgrade the imutils package: In todays tutorial, you learned how to create GIFs using OpenCV. All you need to master computer vision and deep learning is for someone to explain things to you in simple, intuitive terms. And now our DEAL WITH IT text and mask: Figure 5: Do you loathe Helvetica Neue Condensed? Line 4 is the path to dlibs facial landmark predictor. Deal with it. The zeros () function makes a matrix containing only zeros given the matrixs number of rows and columns. If you enjoyed it, please do leave a comment and let me know. When I load an image in OpenCV it is always darker than the original. You can read more about nearest neighbor interpolation here. 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. 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. We decided to take the trip to get away from the harsh Connecticut winters we were in desperate need of sunlight. Make sure you use the Downloads section of this blog post to download the source code, example images, and deep learning models. 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). How could my characters be tricked into thinking they are on Mars? 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. Does balls to the wall mean full speed ahead or full speed ahead and nosedive? And finally, well add the foreground and background to obtain our output which we then return to the calling function (Lines 37-40). Here is an In the first part of the tutorial, well discuss the prerequisites and dependencies for this project, including how to properly configure your development environment. From there we can rotate (Line 155) and resize (Lines 161 and 162) the sunglasses. Deal with it. Theres no point in writing multiple lines of Python to use OpenCV for that. Not the answer you're looking for? All of this is handled by ImageMagick were simply wrapping the command line convert command with a function that dynamically handles different parameters. 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. Then, on Line 103, we loaddlibs facial landmark predictor. This tutorial will show you how to create animated GIF files using OpenCV, Python, and ImageMagick. Deal with it. 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 The solution for opencv read gif c++ can be found here. Should I give a brutally honest feedback on course evaluations? # python create_gif.py - Then we proceed to rotate and resize the mask exactly as we did to the sunglasses on Lines 172 and 173. Does OpenCV provide Connected Component labeling method for binary image? Where does the idea of selling dragon parts come from? Go to file. Youll then combine all of these techniques to build a meme generator with OpenCV! Select the path of the last image, which will be a separate delay. Glancing at Lines 189 and 190, you might be thinking, WTH?. Easy one-click downloads for code, datasets, pre-trained models, etc. To learn how to generate GIFs and memes with OpenCV, just keep reading! Already a member of PyImageSearch University? ## 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)) Yes GIF is a proprietory format. Sorry if my English was bad.. 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. 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. I recently updated imutils to support both (which is the reason why you may see the error). 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). Using ImageMagick we can generate GIF images via a set of input images as well. Creating GIFs with OpenCV. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Using our JSON configuration variable, Glancing atLines 189 and 190, you might be thinking, WTH?. 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 (. ImageMagick is a cross-platform command line based tool providing quite a bit of image processing functionality. Ready to optimize your JavaScript with Rust? Books that explain fundamental chess concepts. 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. Then we proceed to rotate and resize the mask exactly as we did to the sunglasses on Lines 172 and 173. To review the available command line arguments for the convert command, refer to the documentation. 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. Webopencv 14 GIFs. I know that I can display a .png file, So I was thought that i can display a .gif file. Go for it. Hey, Adrian Rosebrock here, author and creator of PyImageSearch. In essence, well convert the foreground, background, and alpha layers to floats in the range of [0, 1] (Lines 46-48). WebYou need to code the methods decode_gif and encode_gif in the example code below. I hope you enjoyed todays tutorial on GIF creation with OpenCV! overlay_image Function alpha_blend Function create_gif Function. Were using. Does the collective noun "parliament of owls" originate in "parliament of fowls"? Access on mobile, laptop, desktop, etc. Lines 2 and 3 are OpenCVs deep learning face detectormodel files. 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 ? 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. 3)How to take these Then well perform the actual alpha blending (Lines 51 and 52). Ill actually be publishing a tutorial on YOLO next week. 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. If you arent familiar with ImageMagick, you should be. Now for the fun part lets take a look at what our meme generator created! Have multiple images youd like to turn into PDF slides? Is there a higher analog of "category with all same side inverses is a groupoid"? If you enjoyed it, please do leave a comment and let me know. For convenience, we divide the operation into two main steps: Collect the images with OpenCV; 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: The entire project is available for you to hack with in the Downloads section of todays tutorial! 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! And perhaps the best way to find LOLs is from memes. 2)How to use the dlib library to apply facial landmark detection and extract the eye regions. Approximately six years ago my dad and I adopted the family beagle, Jemma. Figure 10: A GIF made with OpenCV of me at the recent Jurassic Park: Fallen Kingdom movie showing. Im really happy you enjoyed the tutorial and found it helpful . Hey Adrian, thanks for this tutorial, i was wondering what could be another way of visualising detected objects? DEAL WITH IT. Please But I want to smooth out the edges that are blurry in the instance segmentation code. 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. If nothing happens, download GitHub Desktop and try again. In todays tutorial, you learned how to create GIFs using OpenCV. The temporary folder will hold each individual frame in the GIF. Using ImageMagick we can generate GIF images via a set of input images as well. minute 22.65 seconds) and 123.2, reduce its size (to 30% of the Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition. Notably, well be using imutils, dlib, and OpenCV. Each frame, in turn, will show the sunglasses progressively getting closer to the face until they cover the eyes. I determined the percentage values to calculate both the x-shift and y-shift on Lines 189 and 190 empirically. Other interpolation methods may be more aesthetically pleasing to the eye but will actually be harmful to our mask. 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. Once we understand the project structure well review (1) our configuration file, and (2) our Python script responsible for creating GIFs with OpenCV. 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. 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. If he had met some scary fish, he would immediately return to the surface. 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. My mission is to change education and how complex Artificial Intelligence topics are taught. WebWant to learn how to create fun GIFs in Adobe Photoshop? 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. ), 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. Python. 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. 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. With arrays, why is it the case that a[5] == 5[a]? But first, we need to convert the mask to grayscale and binarize it (Lines 170 and 171) since masks are always binary. As you can tell from the docs, there is a lot of functionality built into convert ! Figure 6: This mask will allow for a border. Deal with it or just read the rest of the blog post for the answer. Find image inside of another (corners detection? ImageMagick is a cross-platform command line based tool providing quite a bit of image processing functionality. Line 4 is the path to dlibs facial landmark predictor. Or just simply removing the background in the video to get the object only? Otherwise, continue. Here you can see tiny Jemma puppy sitting on my shoulder: Figure 13: Jemma is adorable. 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. And thats exactly what I do. Five or six years ago my now wife and I visited EPCOT Center in Walt Disney World in Orlando, FL. I dont know how to put it together. Then we load the sunglasses image and sunglasses mask (Lines 90 and 91). 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. Use Git or checkout with SVN using the web URL. Notably, well be using imutils, dlib, and OpenCV. cv2.imread(image.gif) is not possible.But there are many other alternatives to insert a GIF. Five or six years ago my now wife and I visited EPCOT Center in Walt Disney World in Orlando, FL. Thats easy. Thank you for sharing, James! //std headers. Data. 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. I have learn that the ImageMagick is totally a go-for. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Heres a good joke: A: Im not telling you the answer deal with it. And finally, well add the foreground and background to obtain our output which we then return to the calling function (Lines 56-59). You can install imutils on your system or virtual environment by using pip: Figure 2: Our OpenCV GIF generator project structure consists of two directories, a config file, and a single Python script. 8.7s. 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). Are defenders behind an arrow slit attackable? And if you didnt enjoy the tutorial, whatever, deal with it . Go for it. Do bracers of armor stack with magic armor enhancements and special abilities? How could my characters be tricked into thinking they are on Mars? Making statements based on opinion; back them up with references or personal experience. We put together a command with command line arguments, and then instruct the operating system to. //lib headers. You can master Computer Vision, Deep Learning, and OpenCV - PyImageSearch. Well start with the JSON configuration file first and from there move into the Python script. Im sure Windows readers will be very appreciative , Thanks a lot, James. # processing # generative # p5 # adam ferriss # computer vision. 1)How to perform deep learning-based face detection. A: Im not telling you the answer deal with it. Steps. From there well review the project/directory structure for our OpenCV GIF creator. 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. Well start with the JSON configuration file first and from there move into the Python script. Line 191 is applied to ensure we do not have negative values. You really motivate me to keep working! Retrieve the coordinates of the bounding box around the face. In this tutorial, you will learn how to create animated GIFs using OpenCV, Python, and ImageMagick. How can I use a VPN to access a Russian website that is banned in the EU? For those of you that attended PyImageConf 2018 (read the recap here), you know that Im always one for a joke. Getting error that cv2.imshow() is not implemented, 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. the answer is YES if you compile OpenCV with GDAL support. python file The entire project is available for you to hack with in theDownloads section of todays tutorial! In this tutorial, you will learn how to create animated GIFs using OpenCV, Python, and ImageMagick. My eyes have been localized and their centers computed. 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. Inside PyImageSearch University you'll find: Click here to join PyImageSearch University. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. Connect and share knowledge within a single location that is structured and easy to search. Are you sure you want to create this branch? Code definitions. 64+ hours of on-demand video When would I give a checkpoint to my D&D party that they can return to if they die? How did muzzle-loaded rifled artillery solve the problems of the hand-held rifle? 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. Logs. Sudo update-grub does not work (single boot Ubuntu 22.04). 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. 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. First our fancy sunglasses and associated mask: Figure 3: Do you dislike pixelated sunglasses? 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). 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 (. How can I fix it? In the first part of the tutorial, well discuss the prerequisites and dependencies for this project, including how to properly configure your development environment. Respect from a Pakistani , Thank you so much for the kind words! A video grabber input with ofVideoGrabber. ✓ Run all code examples in your web browser works on Windows, macOS, and Linux (no dev environment configuration required! 199 lines (135 sloc) 5.14 KB. What does it mean? What about batch color adjustments or adjusting the spatial dimensions of an entire image dataset in a single command? We find the person with the highest probability value and compare it with the minimum acceptable threshold. ofPixel frames from ofVideoGrabber can then be analyzed by your The same operations we applied to the sunglasses themselves need to be applied to the mask. see also. 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. From there well review the project/directory structure for our OpenCV GIF creator. Deal with it. 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. 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. Laughing can be the best medice to deal with it 8D. In this tutorial, you will learn how to create animated GIFs using OpenCV, Python, and ImageMagick. Hi Adrian! 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. Thank you so much for sharing this helpful content. 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. License. These things are not taught in universities. This is because our mask should only have two values (0 and 255). Work fast with our official CLI. Does the collective noun "parliament of owls" originate in "parliament of fowls"? You are advised to create a conda environment before proceeding ahead, its not compuslory but it would be better. Using our JSON configuration variable "steps" (the number of steps ), lets generate evenly spaced y-values to place the sunglasses on each respective frame. Do you have a need to draw polygons, lines, and other shapes? Raw Blame. 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 valuablecomputer vision skills that are used in the real world. 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