这个源程序提供了一些用于图像的颜色处理的功能，是基于真彩色图像作的处理，一般的灰度图也是转换为真彩色后作的处理，最后再返转为灰度图。-provided the source for some of the color image processing functions, is based on the true color images for processing, general also converted to grayscale color after the treatment,