jpeg compression , use DCT, Zigzag, Quantization,IDCT, InvZigzag, huffman to do the compression with matlab

inverse zigzag function of matlab

正zigzag扫描和它的恢复。zigzag.m是zigzag扫描的程序，invzigzag.m是把扫描的值转换成原矩阵。-Positive zigzag scanning, and its restoration. zigzag.m the zigzag scanning process, invzigzag.m the scanned values ​ ​ are converted to the original matrix.

inverse zig zag transform to compression algorithm.