OpenCV中的图像旋转(旋转90度) [英] Image rotation(by 90 degress) in OpenCV

问题描述

有人可以建议我如何将图像旋转90度吗?在opencv中有没有实现的功能?

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

我认为图像的转置与90度旋转(顺时针和逆时针)完全不同

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

推荐答案

这不是最有效的方法，但是很简单

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

cv :: transpose(img，res);

cv::transpose(img, res);

cv :: flip(res，res，1);

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

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