CalcRotatedImageBufferSize

Defined in <io/File.h>

Calculate the size of a buffer that would be needed to hold an image that is rotated. For example, if I rotate a 100x100 image by 45 degrees, it will no longer fit in a buffer allocated for 100x100 because now the corners would be outside of the original view.

double CalcRotatedImageBufferSize(const cv::Mat & iImage)

(1)

Parameters:
- const cv::Mat & iImage