输入bmp图像，进行各种图像几何变换，包括图像平移、转置、旋转、镜像。有详细而准确的代码注释，给学习者提供了良好的工具-Bmp input images, a variety of image geometric transformations, including the image shift, transpose, rotate, mirror. Detailed and accurate source notes, to provide a good learning tool