彩色图像分形压缩，由R,G，B中确定一个R块与D块的匹配位置，其他二原色只需在同一个D块位置匹配即可，只改变对应的亮度和偏移量即可，比SFC的方法节省时间。-Fractal color image compression, by the R, G, B defined in a R Block and D Block matching location, the other two primary colors just in the same location matching block D