此代码可以实现对图片的灰度值转换、直方图统计、直方图均衡化；可以主动加入椒盐、高斯噪声；噪声处理支持中值、线性、自适应滤波等操作。代码可以直接运行。-This code can be implemented to the image grey value transformation and histogram statistics and histogram equalization Can actively engage with salt and pepper, gaussian noise Noise processing support values, such as linear, adaptive filtering operation.The code can run directly.