经典的灰度共生矩阵纹理计算方法，实现了图像的加水印，去噪，加噪声等功能，给出接收信号眼图及系统仿真误码率。- Classic GLCM texture calculation method, Realize image watermarking, de-noising, plus noise and other functions, The received signal is given eye and BER simulation systems.