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What(): OpenCV(4.5.2) /home/hyj/opencv-4.5.2/modules/core/src/persistence.cpp:706: error: (-215:Assertion failed) buf in function 'open'
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1
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49
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November 6, 2024
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Image Moderation with Clip
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0
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69
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June 26, 2025
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Segmentation with an AI model with Opencv
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0
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63
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May 27, 2025
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Mybe bug in OpenCV algorithm for method cv2.erode()
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1
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43
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April 29, 2025
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Question regarding dataset
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1
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51
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March 17, 2025
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Hdmirx -> kmssink/waylandsink -> opencv -> hdmitx
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1
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47
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January 26, 2025
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1 trackBar for 2 windows or 1 window with 2 videos
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1
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47
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December 25, 2024
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I have an image of a smear, want to find plot the edges of the blood smeared accurately but i'm facing issues to distinguish between noise and the discontinous smear edge
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1
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45
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December 6, 2024
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OpenCV NodeJS API needed
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2
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41
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October 20, 2024
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Gstreamer Error
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1
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42
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June 24, 2025
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Compilation Error on 4.9.0
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1
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43
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December 13, 2024
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How to setup project with both c++ and python dependencies of cv2?
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0
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61
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May 9, 2025
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triangulatePoints
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0
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59
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February 8, 2025
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Need help to identify handwriting in scammed image with printed text
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0
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59
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January 27, 2025
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cv2.inRange on HSV image always empty
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1
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50
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April 1, 2025
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Computing Relative Pose Between Two opposite direction Cameras Using Markers
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1
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48
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March 18, 2025
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How do I get the address of cv::cuda::GpuMat?
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1
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46
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December 23, 2024
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General question on OpenCV Background Subtraction implementations
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1
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46
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November 5, 2024
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Different FOV with different capture API's
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2
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35
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December 14, 2024
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UVC video capture on Android
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0
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57
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January 24, 2025
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Creating training images
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1
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47
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April 13, 2025
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Training data unzip issue
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1
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43
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April 10, 2025
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Build OpenCV Applications with MSVC on ARM64 Windows
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0
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57
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August 1, 2025
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Module 'cv2' has no attribute TPS transformer creator (Google Colab)
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0
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56
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April 28, 2025
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Cow Tracking to Trigger Udder Spray
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2
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33
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December 26, 2024
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RoboDK and Open CV Part Measurement
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1
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43
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April 1, 2025
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Pnp algorithm fails for low fov camera
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1
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46
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February 24, 2025
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Rlof lof_param->useInitialFlow = true; error: (-215:Assertion failed) nextPtsMat.checkVector(2, CV_32F, true) == npoints in function 'calcLocalOpticalFlowCore' 。
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1
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46
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November 29, 2024
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Find Chessboard Corners Function Help
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0
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56
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June 18, 2025
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Generating action shot image using open cv
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3
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32
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March 31, 2025
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Multiple composite cameras with frame grabber and opencv
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0
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63
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October 16, 2024
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Isolating and measuring faint droplet paths in images
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1
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39
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October 29, 2024
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OpenCV Tesseract API Parameters (SetVariable)
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2
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31
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February 26, 2025
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I'm getting a CORS error while using OpenCV
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2
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32
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October 26, 2024
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Unable to compile NDK Andoird code with OpenCV. STD Cpp function undefined issue
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0
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56
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October 18, 2024
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Help with augmented reality reprojection
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1
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43
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October 2, 2024
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Why I am not getting the same FPS for YuNet model
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0
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54
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March 8, 2025
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UndistortPoints() in opencv.js
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0
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57
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October 24, 2024
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How Uninstall opencv 3.5 on xiaomi?
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2
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32
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October 25, 2024
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Is it possible to check for errors/warnings when writing to RTSP server using VideoWriter?
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0
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61
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October 22, 2024
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Choosing the Right Imaging Camera Module for Embedded Vision Projects
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1
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36
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March 17, 2025
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OpenCV update breaks waitKey behaviour
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1
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38
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February 17, 2025
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How to deal with images of texture and varied lighting dynamically
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1
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39
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December 16, 2024
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Proposal to implement Python support for custom stream sources in G-API
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2
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39
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May 1, 2025
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Improving stereovision accuracy - debugging consistent plane fitting errors
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0
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51
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August 7, 2025
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What is the minimum size of pattern required in findCirclesGrid() or findChessboardCorners()?
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0
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52
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March 19, 2025
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Estimate intrinsic parameter for synthetic fisheye image(FOV 190)
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0
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55
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January 13, 2025
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Test cases failed while Building OpenCV 4.10.0
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0
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54
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December 17, 2024
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[OpenCV.js] Cannot use the TrackerKCF update function
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0
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54
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October 14, 2024
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Multiple cameras, motion detection, classification
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0
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49
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August 18, 2025
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