types.h

可以选择各种压缩方式对读入的图像进行压缩和解压

#ifndef DEFINEDTYPES
#define DEFINEDTYPES

#ifndef NULL
#define NULL 0
#endif

typedef unsigned char ptype; //[height][width] element type
typedef short int btype; //[][8][8] element type
typedef unsigned int cltype; //length of the symbol list
typedef unsigned int blstype; //number of blocks

#endif