采用了最简单的方块编码对512×512的lena图像进行了编码，方块取得越大，图像编码后失真越大。内含工程源码与测试效果。-Using the simplest encoding of 512 × 512 box of lena image is encoded, block access to the greater distortion of the larger image is encoded. Includes engineering source code and test resu