将24位彩色位图的RGB转成YCbCr，并4：2：2或4：1：1采样，再变回RGB三色值显示，和原图比较-change RGB to YCbCr

介绍 YUV 格式、 YUV 采样原理、YUV 视频解码和 RGB 格式之间进行转换。对YUV格式中的YCbCr 4:2:0、YCbCr 4:2:2、YCbCr 4:1:1和 YCbCr 4:4:4格式做详细说明-Introduction YUV format, YUV sampling theory, YUV video decoding and conversion between RGB format. On the YUV format YCbCr 4:2:0, YCbCr 4:2:2,

Described as a way difficult to express in the language VHDL complicated point calculation method can be easily expressed in a FPGA-based 2 n wins to reference video signal YCbCr to RGB conversion will be created. This material has a lot of technic