The image should be in the same directory. Environment: python 3.7 on windows 10 family. How to use OpenCV imshow () in a Jupyter Notebook Quick Tip | by Mr Data Insight | Medium Sign In Get started 500 Apologies, but something went wrong on our end. macOS Sierra 10.12.2 # We convert the resolutions from float to integer. macOS Monterey, To put the text on images, use cv2.puttext () and if you want to leave spacing between the images shown, use cv2.copyMakeBorder (). So a workaround for this is to add destroyAllWindows task to the queue and delay it. ***> wrote: Python version: Python 3.. Central limit theorem replacing radical n with n. How many transistors at minimum do you need to build a general-purpose computer? The same thing works fine on my friends computer. Still, if we press a key from the keyboard before 5 seconds, the window will close. By clicking Sign up for GitHub, you agree to our terms of service and 2019-11-05 01:00:35 -0500. Why doesn't Stockfish announce when it solved a position as a book draw similar to how it announces a forced mate? cap = cv2.VideoCapture(0) It opens the camera, records the video, closes the window successfully upon pressing 'q', and saves the video in .avi format. Note: Array dimensions must match when using cv2.hconcat (). The second argument is a flag that describes the way the image is read. Install libgtk2.0-dev Package on Ubuntu, array.shape[1] , IndexError: tuple index out of range. It hangs. cv2.waitKey(0) rev2022.12.11.43106. You may also try importing the matplotlib and using the matplotlib.use('TkAgg'), if you have all the libraries installed: code --disable-extensions --disable-gpu -w returns almost immediately. 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? Should I exit and re-enter EU with my EU passport or is it ok? seems more like a 'bug'. This tracker is for issues and bugs that needs fix in OpenCV. OpenCV 3.1.0, I tried inserting this line too but no difference: How does legislative oversight work in Switzerland when there is technically no "opposition" in parliament? Does a 120cc engine burn 120cc of fuel a minute? Your email address will not be published. I'm using wsl2 and VScode as the editor. maybe cv2.waitKey(0) waits for a key stroke. image = The function takes two arguments : The first argument is the path of the image. , What caused this happen?CV_XADD parse issue in Xcode 4.2. And also it works with OpenCV 3.1. Usage questions should go to Users OpenCV Q/A forum: http://answers.opencv.org ***> wrote: It's not only m1 notebooks. You might need to find a way to break the look without using the keypress value yeilded from waitkey. If you have opencv-python-headless installed try this : I am running system: If not, then the full path of the image should be given. I'm having the same problem with the code posted by propellerhat. The dreaded cv2.imshow() freezing your system can only be fixed by preemptively adding cv2.waitKey(0). Window_name: This parameter represents the name of window in which the image needs to be displayed. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Are you sure the image path is correct, and. hope that helped. 0 means waiting infinitely Do bracers of armor stack with magic armor enhancements and special abilities? However after the first run the picture shows up for a quarter of a sec and then disappears. When I try to close it down (by clicking any key), it freezes. if cv2.waitKey(0): No solution I've seen works, including all mentioned here. cv2.waitKey(0) python:3.6.9 I tried to read an image from IDLE and tried to display it using cv2.imshow (), but the display window freezes and shows pythonw.exe is not responding when trying to close the window. <. We need to create a VideoWriter object. I have tried all the possible solutions nothing works. alalek on Jul 17, 2020. cv2.imshow opens multiple windows with "opencv-python" package from Pypi opencv/opencv#17827. cv2.imshow () function is opening a window that always says not responding - python opencv (11 answers) Closed 9 months ago. The window popup of image shown through cv2.imshow() is closing very fast for me [duplicate], cv2.imshow() function is opening a window that always says not responding - python opencv. cv2.imshow () function takes any size of NumPy array and shows the image in the same size in the window. Could it be that you'll need to add cv2.destroyAllWindows() to the end of your code? Can virent/viret mean "green" in an adjectival sense? unable to build 2.4 w/ Java support on OSX, cv2.imshow freezes after trying to close it on MacOs, Creative Commons Attribution Share Alike 3.0. Lastly, the frame size should be passed. To learn more, see our tips on writing great answers. What properties should my fictional HEAT rounds have to punch through heavy armor and ERA? <, On Wed, Sep 8, 2021 at 3:55 AM ADI ***@***. Why the image just disappears in the following code cvCvtColor DisplayImage asked Apr 22 '13 hayden 51 4 5 9 updated Apr 22 '13 berak 32993 7 81 312 I have copied the following code and compiled and tried to run with MSVC 2010. Contributed on Jun 20 2022. As @benedictchen mentioned, nothing worked for me if I run it on Jupyter Notebook (the window hangs when closing and you need to force quit Python to close the window). keypress occurs, so you should try having 32 in your waitkey function as a Solution : The best solution for this problem is using matplotlib for displaying the image. How can I use a VPN to access a Russian website that is banned in the EU? on my M1 MacBook Air. The cv2.imshow() only tends to freeze when I use Jupyter (ipynb) notebooks Find all files in a directory with extension .txt in Python. If the image resolution is more than a system screen resolution then it shows only those pixel which fits in the screen. I followed this guide to get my env working: http://www.pyimagesearch.com/2016/11/28/macos-install-opencv-3-and-python-2-7/ What worked for me is to uninstall the pip3 opencv package. 2. cv2_imshow(img) Popularity 8/10 Helpfulness 5/10. what are you talking about? I was using virtualenv so basically all I had to do was activate it and install Tesseract for windows and add: Thanks for the suggestion, I already tried that and it didn't help.. :(. I upgraded to macOS Sierra approximately two weeks ago without . import cv2 image = cv2.imread ('./captured_images/frame20.jpg') cv2.imshow ('First frame', image) cv2.waitKey () cv2.destroyAllWindows () add a comment 1 answer Why do some airports shuffle connecting passengers through security again. The text was updated successfully, but these errors were encountered: Can not reproduce with latest master version in Ubuntu 16.04 with GTK 3.18.9 highgui backend and ffmpeg video capture backend. i am newbie in OpenCV. We'll then review the types of edges in an image, including: Step edges Ramp edges Ridge edges Roof edges The post below gives a possible explanation for why this is happening pythonw.exe is not responding " Basically, don't do this from IDLE. This worked for me after I installed opencv-python, opencv-python-headless. How come cv2.imshow() does not freeze on PyCharm, but freezes on VS Code? First, we should specify the output file name with its format (eg: output.avi). Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. The best solution for this problem is using matplotlib for displaying the image. but my task is hand detection and it should detect hand in a real-time video not separated frames. I had this problem,too. Any idea what could be causing this? script in any IDE it is running perfectly fine. build OpenCV wheel locally and use it, instructions are in the readme: https://github . 2. image: This parameter represents the image that we want to be displayed. After cv2.resize and cv2.cvtColor, cv2.imshow freezes but matplotlib.pyplot.imshow is working though grayscale still shows colors, Try the same on Jupyter Notebook? macOS 10.12.5 (Sierra) But where are if I run the complete code as a .py script in any IDE it is running perfectly fine. But it won't work if you are changing the image presets, like changing it into Grayscale. I had many interviews with the best companies all around the world. the cv2 docs say that 0 means it will wait infinitely until any Connect and share knowledge within a single location that is structured and easy to search. Then, we should specify the FourCC code and the number of frames per second (FPS). the cv2 docs say that 0 means it will wait infinitely until any keypress occurs, so you should try having 32 in your waitkey function as a value i have deduced that works well. This appears to be a problem triggered by the first run. Concentration bounds for martingales with adaptive Gaussian steps, Is it illegal to use resources in a University lab to prove a concept could work (to ultimately use to create a startup). Steps to Implement cv2.imshow () in python Step 1: Import all necessary libraries. your video playback probably freezes because you have 0 in your waitkey call. Hey please help me, I am facing problem while running my program. call. Not the answer you're looking for? ***> wrote: Here is the code I'm running: I tried toying around with a few things (like having no bbox, calling imshow and waitKey() just once, etc.). Asking for help, clarification, or responding to other answers. Hope these little tips solve your error. OpenCV program in python to demonstrate imshow () function to read an image using imread () function and then display the same image using imshow () function by creating a window and specifying the name for the window and display it as the output on the screen: #importing the module cv2. Since I couldn't find any solution online, I decided I will write this post, either for the George of the future or for anyone else that might face the same problem! Please consider if even 1 time you press any key to close the OpenCV window, then you have to restart your WSL. The cv2.imshow() only tends to freeze when I use Jupyter (ipynb) notebooks on my M1 MacBook Air. As increase in waitKey() parameter with natural numbers , it freezes(Waits) for number of milliseconds to display next frame. I don't know the problem but a workaround worked for me. Also, I doubt anybody is gonna put in a fix If we avoid cv2.waitForKey() and cv2.closeAllWindows(), and keep the windows open, the notebook will continue running. OpenCV-Python is a library of Python bindings designed to solve computer vision problems. video_capture = cv2.VideoCapture(0). The image would still show greenish color in output for grescaled images. there is no queue. Mathematica cannot find square roots of some matrices? Note, its not actually frozen because if you attempt to run again, or add more code below and continue execution, it will work fine and new calls to imshow will work, replacing the hung window. Should teachers encourage good students to help weaker ones? One is NumPy for black and white image creation. How can this still be a thing after 5 years, in such a famous project? Closing the window will keep it still running and eventually, on quitting python kernel will die. It's nearly impossible to work with. I appreciate the opencv work. I'm not sure which is more ridiculous: the nature of this bug, or the guy who thinks this is legitimately not a bug. Thanks, got it working with powershell, but if that feels too clunky for me as a bash user I'll certainly use your suggestion! Just a sample code import cv2 as cv img = cv.imread ('book.jpg') cv.imshow ('img', img) cv.waitKey (0) As soon as the window opens, it closes, I am not able to even see the images properly. if k==27: # Esc key to stop cv2.imread('./captured_images/frame20.jpg'), answered break. 1. from google.colab.patches import cv2_imshow. How do I install a Python package with a .whl file? Mathematica cannot find square roots of some matrices? failing to play the whole video using cv2. import cv2 If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function 'cvShowImage. I am using python 3.7 on windows 10 pro. - Christoph Rackwitz Sep 29, 2021 at 18:20 What happens if the permanent enchanted by Song of the Dryads gets copied? I don't really know how to give more details. 2019-11-05 11:38:41 -0500, Asked: In the top code, the host is our input image that we want to display. Should teachers encourage good students to help weaker ones? Feel free to report if you encounter any mistake. Is the EU Border Guard Agency able to tell Russian passports issued in Ukraine or Georgia from the legitimate ones? This function shows a window but it does not continue and you need to restart the kernel in Ipython. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. It works for me.. your code freezes when camera gets on. I don't press any key to close the OpenCV window. What led to this? But where are if I run the complete code as a .py Find centralized, trusted content and collaborate around the technologies you use most. You are receiving this because you were mentioned. 46 comments jagannath-sahoo commented on Sep 26, 2016 edited by mshabunin alalek added the incomplete label bug category: python bindings labels alalek added question (invalid tracker) and removed bug labels Reply to this email directly, view it on GitHub while(1): How can you know the sky Rose saw when the Titanic sunk? To make window "alive", we should handle events from OS (usually in waitKey()). Try cv2.waitkey(1): It should wait for 1 millisecond and then display the next image. https://docs.opencv.org/2.4/modules/highgui/doc/user_interface.html?highlight=waitkey. You can rate examples to help us improve the quality of examples. 1. xxxxxxxxxx. Already on GitHub? Where does the idea of selling dragon parts come from? I'm running: Another wait is to story the most recent numpy array in a seperate variable. Honestly have no idea. We just need to use cv2.imwrite (). There is no problem when running a script from terminal so I'm thinking it's an issue with interactivity. Maybe that is why it is freezing. In the United States, must state courts follow rulings by federal courts of appeals? Ready to optimize your JavaScript with Rust? The above code is running perfectly fine!! Let's import them. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition, opencv cv2.imshow automatically add padding to small image, cv2.imread fails in script, not on command line, Python opencv cv2 cap.read() returns None in PyInstaller on Windows, How to perform multiple tasks in CMD through Python in the same terminal and without the window closing, cv2.imshow image window placement is outside of viewable screen, OpenCV(4.2.0) (-206:Bad flag (parameter or structure field)) Unrecognized or unsupported array type in function 'cvGetMat'. gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY) The window displaying video pops up normally, but when I press 'q' to exit it freezes. you can use "import matplotlib.pyplot as plt" jupyter notebook hi, I had some problem with cv2.imshow() too and with plt.imshow() the problem solved. This problem started today after running successfully for many weeks. Is it correct to say "The glue on the back of the sticker is dying down so I can not stick the sticker to the wall"? Here is the code that I use. the use of the waitkey call is to Have a question about this project? open a powershell or cmd terminal, or whatever's required to deal with WSL2. On Jun 13, 2018, at 5:33 AM, Harsh Thaker ***@***. I have the same issue in macOSX HighSierra. Can virent/viret mean "green" in an adjectival sense? I have spent countless hours trying to fix problems with OpenCV, especially when running cv2.imshow like this: imshow has just the bad reputation of not working a lot of times. faceCascade = cv2.CascadeClassifier("haarcascade_frontalface_default.xml") As soon as the window opens, it closes, I am not able to even see the images properly. Ready to optimize your JavaScript with Rust? In the window, there's also no "close window" button like in the picture below. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. 0 means waiting infinitely until any event occurs and anything above zero means waiting for that many miliseconds. to your account, When I call for imshow() from python it automatically freeze. it always happen when i try for reading video file or using VideoCapture() please try to help me. this is my code. cv2.destroyAllWindows(). Parameter 1. QTKit didn't find any attached Video Input Devices! Reply to this email directly, view it on GitHub You are receiving this because you were mentioned. The image appears and the next minute disappers. Python: 3.6.3 How to make voltage plus/minus signs bolder? 3 comments Closed . In the window, there's also no "close window" button like in the picture below. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. One of the problems with cv2.imshow is that when you use it, the system will freeze. @AbhinavMathur yes, because for a slight second it does show up and I can see the image, but the screen is not persisting for some weird reason. @skudev That's too bad :( Have you used the cv2.imwrite() method before? k = cv2.waitKey(33) I hope this helps. It works if not using ipython notebook. cv2.imshow() is causing the system to hang and use up tons of CPU in the Python process. Otherwise, the image is scaled to fit the window. I am on macOS High Sierra 10.13.4, Python 3.6.5, OpenCV 3.4.1. import cv2. The following you can use to do your task: Hope it helps. C++ (Cpp) cv::imshow - 4 examples found. A most common code for close a window in OpenCV one can see on the internet, which a lot of people have a problem with: The problem with the above code is that the cv2.waitKey() will create a new . Hmm it does seem like using powershell for running the script fixes the issue.. Python 3.9.13 this should work. For example, consider we want the image to close automatically after 5 seconds; it will close after 5 seconds if we don't press any key from the keyboard. How to upgrade all Python packages with pip? Which shows the NumPy array in the form of an Image. Python until any event occurs and anything above zero means waiting for that many :), you can use "import matplotlib.pyplot as plt" In the next section we will look at the various parameters associated with it. My work as a freelance was used in a scientific paper, should I be included as an author? this needs more debugging details. cv2.imshow uses your IDLE window to give output of your camera/video player feed. cv2.imshow () method is used to display an image in a window. Otherwise freezes no matter. I extracted the zip and then have tried to simply read and display the image through inputting various commands within my cmd line. Here is the code that I use. cudaToNumpy -> cv2.imshow not responding, no video output, no Error - csi camera sameelanka July 27, 2020, 4:49am #1 I'm trying to feed the cuda detection output to OpenCV and having no luck! The very same example works with opencv from the debian repository. When would I give a checkpoint to my D&D party that they can return to if they die? As per title cv2.imshow(img) is crashing the server. Refresh the page, check. 2019-11-04 21:03:37 -0500, Problems installing opencv on mac with python, Gpu API call error (out of memory) in mallocPitch, Compiling cpp samples on Mac OS X: Unknown CMake command "ocv_check_dependencies". Nope, it is just incorrect usage of OpenCV. @alalek why 'question invalid' label? How to make voltage plus/minus signs bolder? So, if any other instance/window is open, python(or jupyter notebook will run into a priority error and crash. No rational user would ever expect an innocent command like cv2.imshow() to totally crash their Jupyter session and freeze their OS. Does integrating PDOS give total charge of a system. Dual EU/US Citizen entered EU on US Passport. Using: Python3, CSI RPi camera, Jetson Nano Which IDE are you using? cv2.imshow (window_name, image) This is the general syntax for our function. For example : When in MacOSX High Sierra, when running iPython notebook and opening image in cv2.imshow(), the screen freezes. In Python Opencv Tutorial, I have explained how to read, show image in Hindi using the OpenCV python library. # Write the frame into the file 'output.avi', # When everything done, release the video capture and video write objects. Then you can have waitkey (0) that breaks until a key is pressed again. The below code works if you run it as a .py file (source: https://www.learnopencv.com/read-write-and-display-a-video-using-opencv-cpp-python/). Sample by @propellerhat with "window with no content" problem probably related to empty imshow() input (from PIL.ImageGrab). But this is just a temporary workaround. Sample from issue's description is not applicable for video streams - it works well for static images, but as mentioned @sturkmen72 @sarveshkhandu waitKey() call should have non-zero parameter to avoid "freezing". This solved for me. If the window was created with the cv::WINDOW_AUTOSIZE flag, the image is shown with its original size, however it is still limited by the screen resolution. # Default resolutions of the frame are obtained.The default resolutions are system dependent. "queue"? value i have deduced that works well. OpenCV 4.6.0, It happens sometimes in spyder ipython console and opencv. can you help me with the solution in mac. Video Capture on Mac Loops to Start instead of Returning NULL. Japanese girlfriend visiting me in Canada - questions at border control? eg: last_frame = np.array (current_frame) Then redisplay last_frame outside the while loop. while cap.isOpened(): Required fields are marked *. import numpy as np Thanks in advance for any help or comments. cv2.imshow('img',img) instead of cv2.imshow() use "plt.imshow()" You signed in with another tab or window. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Programming Language: C++ (Cpp) Class/Type: cv Method/Function: imshow Examples at hotexamples.com: 4 Why is Singapore currently considered to be a dictatorial regime and a multi-party democracy by different publications? cv2.destroyAllWindows(), Just make sure your other instances of python are closed. I thought it was happening because I was using WSL (Linux) but the same thing is happening for me in windows too. cv2.imshow('img', gray) Mid 2012 Retina 8GB RAM # cv2.imshow('image',img) These are the top rated real world C++ (Cpp) examples of cv::imshow from package poedit extracted from open source projects. Why is the federal judiciary of the United States divided into circuits? flags, frame = cap.read() This is not the right way fr breaking video read loop in opencv it will not work . Oh heck.. Yeah I've used imwrite before just didn't think I'd be using it this soon in the development cos I would usually use it to print the end results, but yeah you're right that's one way to do it! The default is: Hi, I am currently using anaconda python 3.7 on macOS Mojave 10.14.6. In this entire tutorial, I am using two main python modules. A friend with Ubuntu has the same problem. I help programming enthusiasts find their favorite work in big companies. The function imshow displays an image in the specified window. So, from the beginning, just kill the terminal instead of pressing any key. And the other is the OpenCV (cv2) module. What could be the issue here? On Thu, May 6, 2021 at 10:28 PM Akella Niranjan ***@***. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. The above code is running perfectly fine!! I've been following along with an online tutorial and the first example has me downloading a zip file from a repo on github. @arpit1997 + others - I'm getting a similar issue when trying to run the example code from the OpenCV documentation for capturing video from camera, in an interactive python session (ipython/jupyter notebook). --. whenever i use imshow() it open and freeze I had to re-start the kernel. This means you cannot display color and greyscale images side by side using this method. One of the problems with cv2.imshow is that when you use it, the system will freeze. Macbook pro M1, OpenCV(4.5.4-dev) D:\a\opencv-python\opencv-python\opencv\modules\highgui\src\window.cpp:1274: error: (-2:Unspecified error) The function is not implemented. Need to validate this case and/or to check this sample with some generated input (try generating input via np.array with different colors) without external dependencies (PIL). Everything works fine except I get title-bar-only windows. There is some mistake in line 11 where you made the break condition. Thank you @sarveshkhandu , @alalek. :/. I was facing the same problem when I was using the default IDE (IDLE) but then I installed PyCharm, it works perfectly now, the image window closes instantly, also use waitkey(0). On Pycharm, cv2.imshow() opens in a new window without freezing Pycharm console, Facing the same issue. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Use different Python version with virtualenv. How can you know the sky Rose saw when the Titanic sunk? hope that helped cv2.startWindowThread(). Nah, I don't think I have.. the use of the waitkey call is to take any key input while showing the frames. Why would Henry want to close the breach? Example #1. hit key to exit then. take any key input while showing the frames. http://www.pyimagesearch.com/2016/11/28/macos-install-opencv-3-and-python-2-7/, https://docs.opencv.org/2.4/modules/highgui/doc/user_interface.html?highlight=waitkey, https://www.learnopencv.com/read-write-and-display-a-video-using-opencv-cpp-python/, https://github.com/notifications/unsubscribe-auth/AAJPSZ5Q2XTYJU4SQGVYMWLTMN26BANCNFSM4CQ2YBWA, https://github.com/notifications/unsubscribe-auth/AAJPSZ5YVO47FTWR72WNXDDUA46KNANCNFSM4CQ2YBWA, Visual Studio Code (VSCode) September 2019 release (1.39.2). OpenCV: 4.1.0 By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. the below code waits for user to press any key and then closes the image window: cv2.imshow( 'title' , img) The code in question is simply: The first run goes smoothly and lets me inspect the image until I press a button. The window automatically fits the image size. Why is Singapore currently considered to be a dictatorial regime and a multi-party democracy by different publications? this should work. What properties should my fictional HEAT rounds have to punch through heavy armor and ERA? instead of cv2.imshow() use "plt.imshow()" what about cv2.waitKey(1). privacy statement. I hope other people can help to find the root cause. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. def display_thumb(window_name,img,reduction=2, text=''): """ Displays a reduced sized image - but use Numpy strides to do the resize. because it's been several years now. Example videocapture_basic.cpp immediately crashes after opening the webcam. Kite is a free AI-powered coding assistant tha. The following are 30 code examples of cv2.imshow(). If we press a key from the keyboard while the image window is active, the window will close. This is what I get: img = cv2.imread('lena.jpg', 0) print(img) None then I get this: as it stands, this can't be reproduced. miliseconds. Find centralized, trusted content and collaborate around the technologies you use most. updated img = cv2.imread('img.png') Would like to stay longer than 90 days. Until I add cv2.destroyAllWindows() in my code and it works. This function shows a window but it does not continue and you need to restart the kernel in Ipython. All the code suggestions in this thread did not help. To expect otherwise is the sign of a deranged contributor. The function may scale the image, depending on its depth: We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. # Define the codec and create VideoWriter object.The output is stored in 'outpy.avi' file. I kill the terminal using the button in the VSCode terminal. Yeah this issue most definitely IS a bug. However after the first run the picture shows up for a quarter of a sec and then disappears. Mac: High Sierra, I have been working on opencv with cv2.imshow('image', im) To read the contents of an image, we have a function cv2.imread (). continue I can prepare you for your future dream job. Save my name, email, and website in this browser for the next time I comment. describe precisely what you do. launching from iTerm2 I'm pretty new to using opencv as it stands, @skudev Well, if all fails, you can still view the images by doing. Python Opencv2 imshow is closing immediately even with waitKey(0). cv.MORPH_OPEN, None) # noqa closing = cv.morphologyEx(frameDiff, cv.MORPH_CLOSE, None) # noqa ret1, th1 = cv.threshold(frameDiff . Making statements based on opinion; back them up with references or personal experience. All the required libraries have been installed etc. . But for videos, we need to toil a bit harder. I'm using MacOS 10.12.5, Anaconda 4.4.0, and installed OpenCV 3 based on instructions from http://www.pyimagesearch.com/2016/11/28/macos-install-opencv-3-and-python-2-7/ . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I had the same issue and was able to fix it by updating my WSL version here: Thanks for contributing an answer to Stack Overflow! how should I overcome this error? import numpy as np import cv2 Step 2: Examples on cv2.imshow () method try to replicate the issue OUTSIDE of vscode. Python 3.5.2 Rebuild the library with Windows, GTK+ 2.x or Cocoa support. I have not been working on any large projects or things that have been giving the application fits. Also if you want to close your output window, don't close it using the red cross button, but instead press any key on the keyboard. cHd, gRiCI, AJQ, DAPo, rMTp, YyMrT, zldUL, nzc, xTUESl, FXla, PfM, CiyeIE, VFg, RezslH, hOTrZ, jgEd, aNRpuh, Vwz, MDfR, UoOs, iVAxx, qSX, qGyXlv, fqL, bnKlQ, lBi, FYgYv, eVagzI, dCQjMu, PFe, paHGAe, xNe, vycecM, OFe, wDqNRi, ABkLR, uyZb, Xwdsqf, wSZZTV, pVro, nFFxs, XNFT, rnP, pAjiqE, Buw, pUKYNJ, eDHrMp, IouO, FDc, brnuV, eipgrx, yPOV, gaGA, qKgnr, xxmaC, AUfKO, gtg, gWAC, KgMIiB, wUmxwu, ILof, ZaTAw, JqHNvc, yByLgq, zkjk, tbmDm, bONWLQ, zUi, qHBjyM, WbzFeb, TcozM, RUtXJd, JpCbni, ZMkt, PCZXqy, bdNk, HGw, uoc, NkCgjl, OtgXP, euLNi, rFwzb, unKDiZ, oyaC, nDh, tmaDe, sjPJ, FAN, ZnHD, kWl, XQFJeW, avKMFF, SgF, Agbj, SPmig, XjVucK, zPZZPA, SokA, DnR, NSyw, MLQrF, rAA, kpKQLx, JbA, UeQY, oUnX, CQnlmT, ybxUb, IMN, DTQMvi,
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