Image rotation(by 90 degress) in OpenCV

Question

Can anyone suggest me how to rotate an image by 90 degrees? any implemented function in opencv?

i think transpose of an image is totally different from 90 degree rotation (both clockwise and anti-clockwise)

possible duplicate of [Rotate Opencv Matrix by 90, 180, 270 degrees](http://stackoverflow.com/questions/15043152/rotate-opencv-matrix-by-90-180-270-degrees) — Roger Rowland, Dec 20 '13 at 07:39

score 6 · Accepted Answer · answered Dec 20 '13 at 14:11

6

It's not the most efficient way, but it's so easy

cv::transpose(img, res);

cv::flip(res, res, 1);

answered Dec 20 '13 at 14:11

tenta4

1 Answers1