用罗曼三性编码方法对图形进行编码，matlab源程序。-With the Roman three coding methods to encode graphics, matlab source code.

此例程为配套书籍的第六章例题7-15的相对应代码，功能为PCM编码，编程环境为matlab。-This routine supporting books Chapter Example 7-15 corresponding to the code, the function for PCM coding, programming environment Matlab.