OpenCV

问题 I would like to make a streaming server with python/twisted, which receives a WebRTC video stream and then applys some OpenCV algorithms to it. However I cannot find a python module for WebRTC. How can I send and receive a WebRTC video stream with python/twisted? Thanks! 回答1: What you can do is take screen shots continuously and push them to a websocket and allow your twisted server to take a gander at each one as it comes in. I have modified some common recorders and my version takes Jpeg

问题 I would like to make a streaming server with python/twisted, which receives a WebRTC video stream and then applys some OpenCV algorithms to it. However I cannot find a python module for WebRTC. How can I send and receive a WebRTC video stream with python/twisted? Thanks! 回答1: What you can do is take screen shots continuously and push them to a websocket and allow your twisted server to take a gander at each one as it comes in. I have modified some common recorders and my version takes Jpeg

问题 I would like to make a streaming server with python/twisted, which receives a WebRTC video stream and then applys some OpenCV algorithms to it. However I cannot find a python module for WebRTC. How can I send and receive a WebRTC video stream with python/twisted? Thanks! 回答1: What you can do is take screen shots continuously and push them to a websocket and allow your twisted server to take a gander at each one as it comes in. I have modified some common recorders and my version takes Jpeg

问题 I would like to make a streaming server with python/twisted, which receives a WebRTC video stream and then applys some OpenCV algorithms to it. However I cannot find a python module for WebRTC. How can I send and receive a WebRTC video stream with python/twisted? Thanks! 回答1: What you can do is take screen shots continuously and push them to a websocket and allow your twisted server to take a gander at each one as it comes in. I have modified some common recorders and my version takes Jpeg

问题 I am trying to build a playback loop option for an OpenCV video . My program uses Python multiprocessing, and has a button send loopswitch calls through queue4 to enable or disable the loop option. My specific problem is that my video freezes on the last frame, and I would like to know if the line vidFile.set(cv2.cv.CV_CAP_PROP_POS_FRAMES, 1) is a correct use of the cv2.VideoCapture.set() method , and should indeed take the video back to frame 1 and replay it (as I think it should). EDIT

问题 I am trying to build a playback loop option for an OpenCV video . My program uses Python multiprocessing, and has a button send loopswitch calls through queue4 to enable or disable the loop option. My specific problem is that my video freezes on the last frame, and I would like to know if the line vidFile.set(cv2.cv.CV_CAP_PROP_POS_FRAMES, 1) is a correct use of the cv2.VideoCapture.set() method , and should indeed take the video back to frame 1 and replay it (as I think it should). EDIT

问题 I've worked on this for days now. I have an OpenCV/JavaCameraView-based project I am trying to integrate with an Android android.hardware.camera2.CaptureRequest object I use to control the camera's sensitivity to light. The CameraBridgeViewBase.CvCameraViewListener2/JavaCameraView project works (I can see an image on the screen), and the CaptureRequest project works (see this, too), but combining the two technologies in a single project has proved a big problem. Has anyone gotten these two

问题 I've worked on this for days now. I have an OpenCV/JavaCameraView-based project I am trying to integrate with an Android android.hardware.camera2.CaptureRequest object I use to control the camera's sensitivity to light. The CameraBridgeViewBase.CvCameraViewListener2/JavaCameraView project works (I can see an image on the screen), and the CaptureRequest project works (see this, too), but combining the two technologies in a single project has proved a big problem. Has anyone gotten these two

问题 I am trying to calculate the fundamental matrix of 2 images (different photos of a static scene taken by a same camera). I calculated it using findFundamentalMat and I used the result to calculate other matrices (Essential, Rotation, ...). The results were obviously wrong. So, I tried to be sure of the accuracy of the calculated fundamental matrix. Using the epipolar constraint equation , I Computed fundamental matrix error. The error is very high (like a few hundreds). I do not know what is

问题 I am trying to calculate the fundamental matrix of 2 images (different photos of a static scene taken by a same camera). I calculated it using findFundamentalMat and I used the result to calculate other matrices (Essential, Rotation, ...). The results were obviously wrong. So, I tried to be sure of the accuracy of the calculated fundamental matrix. Using the epipolar constraint equation , I Computed fundamental matrix error. The error is very high (like a few hundreds). I do not know what is