1.DCT变换，对整个图像的直接DCT变换和分块为8*8做DCT变换，并设定阈值。 2.汉明编码（7，4），译码以及找出错误图样和纠错。并在不同的转移概率的BSC道下进行传输。-DCT:Direct DCT and IDCT,blocking. hamming coding:decoding and picking up errors.

主要实现了一种典型的（7,4）汉明编码和汉明译码，能够正确纠错和检错，仿真正确。(It mainly realizes a typical (7,4) hamming code and hamming decoding, which can correct errors and errors correctly, and the simulation is correct.)