c++ - what is the parameter R in cv::fisheye::initUndistortRectifyMap? -


this document of function cv::fisheye::initundistortrectifymap

i don't know r is. can help? thanks.

as stated in documentation!

r optional rectification transformation in object space (3x3 matrix). r1 or r2 , computed stereorectify can passed here. if matrix empty, identity transformation assumed. in cvinitundistortmap r assumed identity matrix.

it used in stereo camera calibration! if not using can pass empty matrix.


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