构造CDIB类，实现对bmp图像的处理，包含图像变换（旋转、缩放、镜像），颜色处理（提取颜色、Gamma、亮度对比度、颜色、灰度转换、位数转换）-CDIB class structure, to achieve the bmp image processing, including image transformation (rotation, scaling, mirroring), color processing (extraction of color, Gamma, brightnes