Cv2 imshow not responding. waitKey(1) == ord('q'): break cap.

Cv2 imshow not responding python filename. To learn more, Method 10: Use cv2. Fixing the method would work. 15 How to update imshow() window for Python OpenCV CV2. OpenCV cv2. IMSHOW() to display the same as CV2. png') cv2. 6 10 cv2. I tried the setMouseCallback example on here, which is working but I'm afraid I have implemented it wrong in my own code. I don't get any errors, and the program doesn't hang (pressing a key closes the window just fine) - it's just that there is no image in the window. VideoCapture not working [duplicate] Ask Question Asked 6 years, 7 months ago Modified 6 years, 7 months ago Viewed 23k times I want to plot a series of images that are stored in the numpy array x_val but plt. 04 has a conversion problem Why is Rabbeinu Peretz the Go-To Tosafist for Mesechet When I tried to run script on AWS/GCP instance (VM) for OpenCV, the command cv2. I think i tryed everything involving changing the path. The function waitKey waits for a key event infinitely (when 𝚍𝚎𝚕𝚊𝚢≤0 ) or for delay milliseconds, when it is positive. imshow function is not thread safe. cvtColor, cv2. imshow() in Context of GUI Apps. If we avoid cv2. 9 webcam cannot be accessed by WSL. (for further usages, such as CV techniques. Other. Script ends normally, but no image. Jun 2, 2023 · Search before asking. When I use cv2. wscourge. The first target is to display an image and destroy the window when pressed key "q", like usual. My file is cv2. Closed ID3LT opened this issue Feb 27, 2022 · 1 comment Closed cv2. imshow() function is opening a window that always says not responding - python opencv (11 answers) Closed 2 years ago . waitKey() and leaving it empty, but no luck. Simply calling tuple() on anything iterable (lists, numpy arrays, ) puts those elements, as they are, into the tuple. imshow('text', frame) works fine when run from root. release () cv2. waitKey(0) As soon as the window opens, it closes, I am not able to even see the images properly. What's going on: OpenCV expects not just a tuple, but a tuple of Python integers. OpenCV: AttributeError: module 'cv2' has no attribute 'face' 0. waitKey(1) == ord('q'): break cap. imshow() into cv2. imshow("Original",image) #after few lines plt. 25 Python OpenCV Error: Current thread is not the object's thread. waitKey(0) input('') cv2. imshow(), I mostly get a small window with the correct name but containing only a black screen. imshow command doesn't work properly in opencv-python Images in OpenCV will not display or respond until you have called waitKey();. Also, add cv2. I also tried pyopenvc and pip install opencv-python. waitKey(-1) are not working and windows remains opened after pressing keys with the code of the example Trying to close the windows will result in a "Not Responding , Force to Quit" Alert But when executing the script from Terminal , it works 100%. Modified 5 years, 9 months ago. To learn more, cv2. imread("C:/Users/JP/ It's hard to say from the code what the problem is, but I believe is cv2. But nothing shows up in the output. I tried pip install cv2 and pip install open_cv and got the same problem - a warning message from dist. Improve this answer. zeros((512, 512, 3), np. imshow()? Here is my code: import cv2 import numpy as np from matplotlib import pyplot as plt s Asking for help, I had i lot of trouble with cv. imshow("Video", dst) that also not working. CAP_PROP_FRAME_HEIGHT , 240) // you should chose a value that the camera supports while True: success,img = cap. I thought it was happening because I was using WSL (Linux) but The problem I am facing is that the image is not displayed whenever I call the "getGridSize()" function. imread('sample. Can't get CV2. Stack Overflow. when I change plt. If the image format is not supported by OpenCV, it may not display properly using imshow(). mp4' A working code is something like this;. I'm trying to get an image to display, but imshow() only opens an empty window. ID3LT opened this issue Feb 27, 2022 · 1 comment Comments. imshow('frame',frame) if cv2. Python OpenCV imshow fails. setup: macOS Big Sur 11. 0) unless waitKey was called to pump the events. This is particularly common when working with Explore various solutions to the common issue of cv2. I tried using different integers with cv2. imshow with Picamera2 i didn't get anything. imshow freezes but matplotlib. It simply says not responding. waitKey(0) It should show the saliencyMap inside " Skip to The actual "problem" comes from imshow itself, and is the following:. png', cv2. openCV imshow fails randomly. imshow("image", image) Yes, this has already been answered - you're actually not missing the second argument, but the first. But the image display works when I manually assign a value to the variable 'num' I have tried using cv2. I want them to be showed together, is it possible? This is the first time I am using matplotlib and only installed python3-tk. Since you are on Windows, there's hardly any chance that you can pass-through X from your host to your container since Windows does not run an X server; it uses other systems for on-screen cv2. waitKey() to handle the keyboard In this instance, cv2. 0 openCV imshow in WSL using Xming. show. But all the texts are not showing correctly: RGB values in the I have code for pose estimated. py I'm trying to display some images using OpenCV library. cv2. However, when run from another user (myname), I get the following error: Unable to init server: Could not connect: Conne This simple piece of code is not working. it is Aug 15, 2018 · I need to install cv2 for a script that has been written for me. ModuleNotFoundError: No module named 'cv2' in VS code. I should be getting a rainbow image instead. I have an alternative method which would prevent from freezing your system. imshow displaying a blank window or not functioning correctly in OpenCV with Python. imread("input_path") #Convert to HSV im_HSV = cv2. imshow command might not work properly is due to the lack of GUI backend support on your system. I have searched the YOLOv8 issues and found no similar bug report. imread() not finding my Image. The destroyImage call fails to close a window (atleast under Linux, where the default backend was Gtk+ until 2. imshow (), the running can never stop. To learn more, see our tips on writing great answers. imshow() command in a endless Loop and I want to manipulate the window position because the window is always on the top of my display and a small part is invisable. I had the same problem. Thanks so much. imshow() freezes. 2waitKey(0) to cv2. Bug. Very helpful guides. The process can be seen in console as frame processing 1/1000, 2/1000 etc. imshow("Frame", clone). uint Skip to Hi all, I am quite new here. waitKey(0) and cv2. namedWindow("Output", cv2. imread('022444057. I want to capture video from a webcam and save it to an mp4 file using opencv. imshow: Feb 3, 2016 · I have the following code that's working, except the draw circle on the provided image. Though most of the examples from pyimagesearch utilize the picamera module and Are you sure the build of OpenCV you installed is built with some HIghGUI backend? From what I've seen the default Linux flavours often aren't. 1. etc) Anyway, I managed to display an 'normal image' with simple codes like below. I do not know why my image is not loaded when I run my program. The code lacks any validation that imread succeeds, although I don't think that's the issue here. I'm trying to load a sample image using python 3. imshow () freezes. The cv2. imshow() is not working properly in PyCharm (MacOS) Hot Network Questions What does お構い申し mean here Python OpenCV cv2. plt. You switched accounts on another tab or window. imshow("shown_img", img) Share. However, by understanding the common causes and solutions outlined in this post, you can troubleshoot and fix these issues, allowing you to focus on building your computer vision projects without unnecessary frustration. My file is in the same directory as my JNB (so, no file not found in directory issue) After showing the image with imshow(), I ask the user if they would like to crop. Thanks and Regards Niladri python opencv Share Improve this question Follow asked Oct 19, 2016 at 15:44 Niladri Chakraborty Add a comment And when I run it the cv2. 4. destroyallwindows() but If you have used python notebooks then there is a problem in Unix based system to run a program of opencv. read() I am facing a bit of an issue with imshow(). imshow is not working because of the qt 1 OpenCV 2 imshow not showing the video using python 3. Most of the time, the code runs when I call it in command line, but occasionally I get the following NameError: NameError: name 'masked' is not defined However, 'masked' is absolutely defined before it is called in cv2. that is the default. However, when run from another user (myname), I get the following error: Unable to init server: Could not connect: Conne Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers You will not face any kind of problem Copy the same code and save with filename. destroyAllWindows() then open specific directory and then open terminal . Image Size: If the image size is too large, it may not fit Also "show" window is not created. imshow not responding #17411. imread('2. Copy link ID3LT commented Feb 27, 2022. waitKey(0) the image looks good. I am displaying an image using the following code: cv2. I used VS code in remote SSH. This issue was not encountered in previous Whenever I use the imshow() function in opencv in it generates a window with the message 'Not responding'. 66 Operating System / Platform => win10 Compiler => python Detailed description Function cv2. ; YOLOv8 Component. mx8m. Ask Question Asked 5 years, 9 months ago. Asking for help, clarification, or responding to other answers. Facing the same issue. import cv2 as cv img = cv. Hot Network Questions Question about the uniqueness of abelianizations I'm supervising 5 OpenCV2 imshow image display not working as I expected. Both libraries are installed correctly. The parameter is the same as used for cv2. Make sure your GUI applications integrate cv2. waitKey(0) or cv2. I made a slice, to get a single channel of an image, like red = frame[:,:,0], and then got an exception in imshow. IMREAD_COLOR) img = cv2. imshow() doesn't actually display anything unless I have already tried to plot something using matplotlib, e. chaquo. imshow("CTest", img) cv2. waitKey(0) and did not work either. When I try with this code it is not working. zeros((5, 5, 3)). imshow() does not work cv2. 5. jpg') cv2. set(cv2. waitKey(10) & 0xFF == ord('q') ^^ Read the doc here for reference waitKey():. imshow() does not work inside a custom function 0 cv2. imshow('test', im) cv2. may I know what is wrong in above code? Also why "hello1" is not printed ? **EDIT* As imshow method was not working, I tried matplotlib. tuple() iterates over whatever you pass in. After cv2. source activate YOURPROFILE. 2) I Try give more time to waitKey() function: cv2. astype(np. def detect_pixels(): Oct 13, 2020 · But for some reason it's not responding. py import cv2 input = cv2. g. imshow is Jan 5, 2020 · Python OpenCV cv2. If the window freezes or becomes unresponsive when using cv2. 11. I know that the image is loaded correctly, because I'm printing out the arrays and Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; There are a few peculiarities with the GUI in OpenCV. imshow('image', img) cv2. I uninstalled and reinstalled opencv-python with pip. uint8) im[:, 5:, :] = np. waitKey() and leaving it Problem 2: When calling imshow the everything just freezes and no window even shows up. Load 7 more related questions Show fewer related questions Jun 20, 2017 · @AlexanderReynolds 0 means forever-- can't wait any longer that that. When I step over to cv2. imshow() does not work inside a custom function 1 OpenCV 2 imshow not showing the video using python 3. imshow, nothing happens, no errors, no window opens. waitKey() to handle the keyboard Mar 9, 2022 · 文章浏览阅读1. show is displayed. py and complains about zlib being not found. imread('Tarun. imread('logo. namedWindow()not nameWindow. imshow not showing webcam video and not opening any window. colab. Utilize the & 0xFF technique with cv2. You signed out in another tab or window. I am trying to display an image with cv2 in python: import cv2 img = cv2. imread("C:/Users/JP/ Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 0. To learn Why is there a difference in the output image when calling the same image using plt. waitkey(0) and cv2. 3 cv2 image show doesn't work when multithreading. imshow() window. Currently I am working on NXP i. It will cause system freeze so you will need to restart kernel everytime when you try to execute code. imshow() not working in windows. I even tried plt. imshow() is not working - cv2 method - pycharm. Provide details and share your research! But avoid . You will not face any kind of problem. When you are using the zero based index your webcam and cv2. 2 + Python 3. Even so, closing is not guaranteed; the the waitKey function is only intercepted if a window has cv2. 0. Related questions. Reload to refresh your session. However none worked in my case. import cv2 import threading def run(): Asking for help, clarification, or responding to other answers. cvtColor Asking for help, clarification, or responding to other answers. I am not sure that you are writing your file name correctly. imshow() it does, so I'm confused as to why this happens. (shown in let's say cv2. Modified 4 years, 4 months ago. waitForKey() and cv2. I tried it with small python code. I've not yet come up with a good reason why this is happening, and i also tried keeping/changing These were the guides that I used to setup the raspberry pi initially and I used them to link opencv to python. This is the error: Cannot connect to X server import numpy as np import cv2 from matplotlib import pyplot as plt img = cv2. import numpy as np import urllib. imshow() in OpenCV cv2. Just move cv2. i wanted to play around with cv2 and learn the module but came across a problem my first go. 1 but no result. imshow() function is opening a window that always says not responding - python opencv. I want the webcam to continue moving while processing my codes, how can I do that? import cv2 cap = cv2. namedWindow to the threading. plot(hist) plt. Start your free trial. Steps: There is a video, that is being processed. Python OpenCV cv2. Therefore your answer does not apply to OpenCV 2. The situation is as following. destroyAllWindows() too but in vain. Camera tested with hello_lib command and works well. So, I went to the opencv site and downloaded the relevant exe. imshow operator. import numpy as np import cv2 im = np. VideoCapture works fine; however VideoCapture cannot read a file like 'car(space)video. 2. Get Computer Vision: Face Recognition Quick Starter in Python now with the O’Reilly learning I'm literally just starting out, but already stuck . destroyAllWindows() What I tried & what I know: checked the relative and absolute path of the image, it's fine; printed the image array - it works; tried displaying the image using matplotlib - it works; changed cv. This is my code: import cv2 import time test1=cv2. zeros([1, 2]) # init params s_img = np. imshow("Video", img) if cv2. patches import cv2_imshow img = cv2. This is a minimalist program for test: import numpy as np import cv2 cap = cv2. import cv2 input = cv2. exists(file_path) function also gave me back a True. imshow is not working because of the qt. About; Products Asking for help, clarification, or responding to other answers. 3. Making statements based on opinion; back them up with references or personal experience. imshow & cv2. Ask Question Asked 4 years, 4 months ago. 10 , python 2. To learn I tried this code, my inbuilt webcam switches on, I'm a getting a preview window but video is not displayed. IMREAD_UNCHANGED) cv2_imshow(img) One possible answer: Insert Camera Capture snippet, the method take_photobut you need to modify the method. Those window decorations look like a Mac, and I Apr 12, 2020 · Thanks for the comments, I tried cv2. No cv2 installed. Adding a waitKey(1) call right after destroyWindow may work. 9. imshow shows binary image 0 Can't get CV2. 175 . imread to read an image. Im show issue It does open and update the frame, Python OpenCV cv2. The solution is very simple once you understand why Jupyter crashes. imshow() starts without poping up a window when called in threading. Viewed 680 times 0 im new to python and coding. | Did you try running this with a regular command line Python interpreter, rather than in Jupyter? I run my code which is locking up my kernel. COLOR_BGR2HSV) #Show the image with matplotlib These were the guides that I used to setup the raspberry pi initially and I used them to link opencv to python. imshow output the same as the plt. Im sure its a simple Mar 22, 2019 · Sadly an all too familiar feeling The Problem. I am trying to run in real-time but OpenCV not showing the video. 5. WINDOW_GUI_EXPANDED) cv2. imshow() does not work properly when the image is small. imshow() to cv2. OpenCV-Python is a library of Python bindings designed to solve computer vision problems. imshow('image', x I had a similar issue so I installed opencv-python-headless (install opencv-python if not earlier) and reloaded the VScode window. ones((5, 10, 3)) * 255 im = im. CAP_PROP_FRAME_WIDTH , 320) // you should chose a value that the camera supports cap. destroyAllWindows Asking for help, Dusty, I tried suggested changes, but still no luck; terminal window freezes at the same line of the print output. waitKey(1) after the imshow() function call. imshow is working though grayscale still shows colors. waitKey(0) The first run goes smoothly and lets me inspect the image until I press a button. I'm in a jupyter notebook using anaconda. imread('path_to_image. uint Stack As stated here, you can use the cv2_imshow to display the image, but you want to process Camera frames. 4. I have tried uninstalling and installing the opencv package but it still Function cv2. 1. 4 on Windows 7, and possible not other platforms. I did installed VSCode and tried in there. didn't found the problem origin , will update if i find it. imshow(output, saliencyMap) cv2. Though most of the examples from pyimagesearch utilize the picamera module and When i'm run the script, i see that the cam is working, but the window with this cam is not showing anywhere, i've had just the Python icon showed up but it`s even not clickable. 175 cv2. OpenCV 2 imshow not showing the video using python 3. I can display in the console using matplotlib. . I report the issue, it's not a question; I checked the problem with documentation, FAQ, Expected behaviour imshow should open a window Actual behaviour python process running but no window shows Steps to reproduce def show_image(image): cv2. confirming the Oct 10, 2018 · I load an image using cv2. I can image that doing so somehow One of the primary reasons the cv2. Copy the same code and save with filename. Aug 26, 2020 · As stated here, you can use the cv2_imshow to display the image, but you want to process Camera frames. The only hitch is that I'm trying to save it as mp4, not avi. I have been trying to figure it out for more than a week, but got stuck. jpg') cv. I am very new to Raspberry and python. imshow()的代码段时图像卡死且无反应，运行中止，点击启动Jupyter Notebook的终端程序，终端上会记录Jupyter Notebook的运行信息， Dec 3, 2020 · Expected behaviour imshow should open a window Actual behaviour python process running but no window shows Steps to reproduce def show_image(image): cv2. But if I add the import cv2 as cv2 import numpy as np cap = cv2. jpg',cv2. Jul 6, 2024 · Python OpenCV cv2. uint8) def Oct 28, 2020 · However, the following code when I run it, displays nothing. It needs to detect the face first before it can scan the barcodes. imread("image. I try to detect color on the screen in real time and when I'm using imshow function it is not responding and You have 2 ways of solving this issue, A) Using matplotlib : %matplotlib inline #The line above is necesary to show Matplotlib's plots inside a Jupyter Notebook import cv2 from matplotlib import pyplot as plt #Import image image = cv2. VideoCapture(0, cv2. imread('im0. 0 Python OpenCV cv2. So if after your first two calls to imshow you call waitKey(1);, the image will display (it will wait one millisecond for a key press and then it will become nonresponsive). There are also live events, courses curated by job role, and more. The output video has done ok, but if i want to see the results during the run, there is a grey screen On my raspberry pi cv2. VideoCapture(0) while True: _, img = cap. WINDOW_AUTOSIZE) cv2. read() cv2. waitKey() However, if I generate a To change Spyder setting: Go to Tools > Preferences > IPython console > Graphics > Backend: Automatic (Change backend from Inline to Automatic) I can do these types it is not working what shall i do spyder According to me, the method cv2. import cv2 im = I have written an openCV code and my code has following statement: cv::imshow("Matches", matchesImg); cv::waitKey(0); When I run the code either in Debug or Release I am not able to see window which shows me the output. 7w次，点赞11次，收藏23次。使用python访问图像信息，运行到cv2. imshow() properly with the application’s main loop, avoiding direct usage in environments that handle their own event loops, like IDLE. imshow() is not working properly. I started a thread to update this class by calling procced method and get the latest image to main thread by calling get_latest method. Sometime I got the image but sometime just the window with a tiny black rectangle in it. ModuleNotFoundError: No module named 'cv2' (only in vscode with venv) 1. cvtColor(im, cv2. imshow(mat=image, winname="tt") # Wait for a key cv. The image is displayed after closing the graph. imshow() does not work inside a custom function. I am trying to display image using the below code in Google Colab. Hot Network Questions Salvaging broken drywall anchor Delete rows from Tabular based on column condition Aug 12, 2016 · I am running a video feed through a cv2. Thread that calls cv2. It does work sometimes however but it is unpredictable. Hi, I'm trying a simple code, in which I load a model, made a detection and I need to exhibit As per title cv2. 4; python The cv2. resize and cv2. imread('Prova. I am having a problem with openCV (version 4. If you call waitKey(); with no arguments or use a while loop similar to the one at the end of the code, the images will display According to me, the method cv2. imshow("image", image) On unix-like systems, you can pass-through the host's X server (if any) to the docker container by setting up a set of required mounts (see this article for an idea). Skip to main content. imshow output? # loading image img0 = cv2. I'm not sure what is(or isn't)going on. Part of what I don't get is that the 'XVID' argument passed to the CV2. The window automatically fits the image size. waitKey(1000) just to see - nothing happens If OpenCV imshow() exist, the code works fine with additional QPixmap shown in the QLabel on top of the OpenCV cv2. waitKey(0) would continue after pressing "Scr" button (or its combination), but you can try this . 6. In such cases, the window may struggle to update the displayed frame in real-time. 0, 3. 2 Problem using OpenCV in WSL, when opening Add cv2. imshow command not working correctly can be a stumbling block when developing with OpenCV in Python. path. mp4'. imshow('img', img) cv. imread() and want to show it up using cv2. Then imshow also worked. Not able to figure out the reason, Can someone please guide me on this? image = cv2. Open terminal - cd path/to/filename. I tried this code with OpenCV 2. And this is happening for every project I create. Looking at the This project is face-recognition with barcode. imshow() Not Responding Issue Fix. My camera is working properly. Oct 18, 2017 · I'm updating the cv2. here is the print output, at the end i ctrl+c: jetson. Making statements based on opinion; back them up with references or How can I make the cv2. Dec 22, 2021 · import cv2 not working in vscode but working in pycharm. 6 Hot Network Questions Calculator in 24. IMREAD_UNCHANGED) cv2_imshow(img) One possible answer: but On my raspberry pi cv2. pyplot. waitkey(0) to give the program enough time to process everything you Solution: call the . py. png") # converting to gray scale gray = cv2. 3 cv2. Works great on Windows, but not on my Mac. Apr 22, 2020 · I was trying to check on what data was actually being read in via cv2. Copy link Darshan-20310597 commented Oct 7, 2020. imshow. The frame to be shown is grabbed by webcam and in debug mode really read. namedWindow("image", cv2. imshow() method is used to display an image in a window. resize(img, (640,480) ) cv2 I run my code which is locking up my kernel. When I run the program, the green light for the webcam comes on (as I'm on a Mac) and there aren't any errors. 3k 17 17 Asking for help, clarification, or responding to other answers. I found the cv2. from google. I have already tried other answers like "adding waitKey() or creating window. However after the first run the picture shows up for a quarter of a sec and then disappears. imshow in opencv with python is not interactive. I searched the web for a python package that would allow me to open a camera, take a picture Asking for help, clarification, or responding to other answers. moveWindow() command is a nice solution for my task but is there an other way to set the window position only once and not to repeat the command in every Aug 16, 2019 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. pip install opencv-python-headless However, some methods like imshow() kept failing: imshow() just calls cvShowImage() and, on Windows at least, if the named window doesn't already exist cvNamedWindow() is called to create it. 1 imshow() not work even with waitKey() I can confirm all my previously working C++ code now only shows window title bars without contents. However, when using mutli-Threading, all presented in a white box and not the image itself. I have a camera and write a class for grabbing images and saving them to a video. However, if i take out the OpenCV imshow(), the UI will freeze and nothing showed leading "python not responding". But why Jun 22, 2022 · OpenCV => opencv_python-4. If the window was not created before this function, it is assumed creating a window with cv::WINDOW_AUTOSIZE. I need help. imshow is not working. Copy link Mar 13, 2020 · I successfully use cv2. imshow not working when using with plt. xlim([0, 256]) plt. Is There are several reasons why certain images may not display properly using OpenCV's imshow() function: Image Format: OpenCV supports various image formats, including JPEG, PNG, BMP, and others. jpg',0) cv2. Follow edited Oct 18, 2019 at 7:45. However, I came here with another issue: not every numpy. IMWRITE() 0 Change plt. Viewed 521 times cv2. imshow(). imshow() isn't working every time. On the other hand with opencv it works fine: cv2. Get full access to Computer Vision: Face Recognition Quick Starter in Python and 60K+ other titles, with a free 10-day trial of O'Reilly. The flow is fine not unless after it detect someone face the window in imshow is not responding anymore, the webcam got froze. inference – detectNet loading build-in network ‘pednet’ OpenCV imshow function seems to work outside a function but not inside that function (and I don't think the answer is waitKey()). I restart the pc and tried with one pic open still shows the same problem. The logcat shows that : com. 7 and even with OpenCV 3. imshow('Hey its me Tarun yellogi',img1) error: C:\projects\opencv-python\opencv\modules\hi Asking for help, clarification, or responding to other answers. waitKey(0) The image is not displayed but only the plt. waitKey(0) cv2. 6 OpenCV. destroyAllWindows() then open specific directory and then open terminal The app crashes because of this instruction cv2. Here is the little window img = cv2. I finaly solved the problem by loading the images Tried to display the image using imshow from OpenCV, it works for opencv when only working with images and not videocapture in that case it returns error, but when using cv2. import cv2 import numpy as np #load color of an image in grayscale img1 = cv2. imread() but whenever I do so I get a full grey screen. I appreciate if someone can help. The kernel indicator (Python 3 (ipykernel)) circle is solid and stays that way. I've never seen a file directory like 'car video. I am working on a project which requires functions from OpenCV to plot images. I dont know what else to try. imshow is working properly(as it is showing the correct image). This is a more complex scenario, and it could happen for many different when calling cv2. However, now window frame Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I am trying to learn about Opencv on embeded Linux. VideoCapture(0) x = 0 while True: ret, frame = cap. import numpy as np import cv2 cap = A few weeks ago I was completing a project and kept running into a frustrating problem with the camera. While waiting for input to the command window, the namedWindow is not responding, and if the user clicks the window before specifying whether or not to crop, the window takes that as the first point to use for cropping. My goal is to pass the cuda object to openCV post detection, i don’t know if there’s any workaround to achieve that. The frame to be shown is grabbed by webcam and in Aug 4, 2022 · You signed in with another tab or window. If I just simply turn on the camera without the object detection code, it works fine. The Class also has a ring-buffer, so that the newest image can be gotten. request as ur import cv2 params = np. imshow() not working in windows 5 cv2. ndarray of type uint8 can be displayed. Issue submission checklist. imshow('image', image) cv2. How come I'm following one of the openCV python tutorials on displaying a live video feed from your camera. CAP_DSHOW) // if you have second camera you can set first parameter as 1 cap. Hello, I’ve been using OpenCV for a while, but I tried creating a new project with windows 11 and I seem to be having some issues with methods imshow and trackbar. output = cv2. imshow(img) is crashing the server. closeAllWindows(), and keep the windows open, the notebook will continue running. python. Mar 4, 2018 · The video capture is working correctly; The image show is working correctly while I'm not using thread (When this is the only process). Description What steps will reproduce the problem? IPython console - I'm trying to load a sample image using python 3. Why is this happening and how can I solve it? I am learning 2D Gabor Asking for help, clarification, or responding to other answers. waitKey(10) & 0xFF == ord('q Optional: cv2. Optional: cv2. Python version: Python 3. Feb 27, 2022 · cv2. I report the issue, it's not a question; I checked the problem with documentation, FAQ, I am facing a bit of an issue with imshow(). imread('book. plot(x, y). imshow('Hello World', input) cv2. IMWRITE() Hot Network Questions Jun 10, 2017 · nyngwang changed the title OpenCV 3. The os. How to solve this error? I can not find any issues. imshow(val[1]) does not work. show() cv2. imshow(mat=image, winname="tt") # Wait for a key Aug 10, 2022 · Hello, I’ve a problem with imshow. Method 11: Gradual Waiting with Key Handling. imshow) cv2. Syntax: cv2. imshow() Not Working with PiCamera2 Library on Raspberry Pi Have you ever faced issues while displaying images captured using the PiCamera2 library on Raspberry Pi with the OpenCV library? This article will help you understand the Can anyone please tell me why it is not working. jpg',0) cv2 cv2. tolist() method on the numpy array, then convert the list to a tuple using tuple(). I found example code on stackoverflow (below) that works great. The problem is that the image box is using the same Python Nov 6, 2024 · Method 10: Use cv2. Here's a simpler way to open the webcam using python and opencv: img = cv2. imshow, it may be due to a high frame rate or a large image size. cjckgx flagc xnanw wpbbql hokb zxgs wcqie snhsblwfd xjcpzsu srjqkf