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Video Input with OpenCV and similarity measurement. Look here in order to find use on your video stream algorithms like: motion extraction, feature tracking and. For the documentation you need to explicitly issue the build commands on the doc project for the PDF files and on the doc_html for the.

I am trying to get camera calibration parameters by using opencv camera calibration functions. I have a video and trying to find the calibration parameters and find the points in the video which inclused a checkboard in different psoitions. But i couldnt passed the calibration phase yet. I can find the corner of the checkboard and show them in openCV window but when it comes to line:

it throws exception and stops.

I get the following error: OpenCV error: Assertion failed 0 &&nimagesint imagePoints1.total ()&&

Here is my code:

2 Answers

Print the size of all your std::vector, I suspect you are passing an empty vector to that function.

EDIT:

I've shared some instructions in this answer on how to do camera calibration. Those references include working source code. You'll probably have to do a small adaptation on those programs so they work with video instead.

Chessboard Pdf Opencv Video Capture Mac

you should look at this:http://docs.opencv.org/modules/calib3d/doc/camera_calibration_and_3d_reconstruction.html#bool findChessboardCorners(InputArray image, Size patternSize, OutputArray corners, int flags)

Chessboard Pdf Opencv Video Capture Free

it says your Source chessboard view must be an 8-bit grayscale or color image.so you must use this:bool found = cv::findChessboardCorners(gray_image, boardSize, imageCorners);

Chessboard Pdf Opencv Video Capture Tool

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