在 RGB、HSV、YCBCR三个空间，实现印章的提取，设计了MATLAB GUI界面，综合利用三空间的特点，高质量地从复杂背景中提取印章。

This a two stage method in which at first image RGB compensated and then converted to YCbCr to normalise overall illumination of image.Its cascaded implementation of section 2.A of paper "A FAST SKIN REGION DETECTOR" by Phil Chen, Dr.Christos Greecos

rgb图像转换成YCbCr，matlab视频采集某几帧并转换为二值图像和YCbCr图像-RGB images are converted into YCbCr, matlab video capture a few frames and converted to two value images and YCbCr images