几种图像编码标准在一个程序的集合，包括霍夫曼编码，香农-费诺编码，算术编码，位平面编码，可以输入256色图像和输出。-Several image coding standard in a collection of procedures, including Huffman coding, Shannon- Fenno coding, arithmetic coding, bit plane coding, you can enter the 256-color image and output