bmp图象处理类,实现了bmp图象的读写操作、图象缩放、旋转、加减、合成、边缘检测、测量周长、面积、小区域删除、去除黑斑、去除白班、二值化、抽取图象内点等。-bmp image processing category, achieving bmp image read and write operations, image scaling, rotation, addition and subtraction, synthesis, e