解析并显示位图文件，颜色空间的转换，显示RGB/YUV文件，图像的量化和采样 -Analytical and display a bitmap image file, color space transformation of the display RGB/YUV files, image quantization and sampling

图像数字化包括图像的采样和量化等功能，实现图像的像素变化(The image digitalization includes the functions of sampling and quantizing the image to realize the pixel change of the image)