仿射变换,其实就是不同的坐标系的相互转换,用于图像的平移和旋转. 首先看一下官方的api描述. https://docs.opencv.org/2.4/modules/imgproc/doc/geometric_transformations.html?highlight=warpaffine#void%20warpAffine(InputArray%20src,%20OutputArray%20dst,%20InputArray%20M,%20Size%20dsize,%20int%20fla…