说明：  本文主要讲解了图像直方图的基本概念和图像点处理运算中的增强、平滑、锐化概念和实现算法，并给处理实现代码和处理效果图和广大读者朋友们交流，希望达到抛砖引玉的作用。
(This paper explains the basic concept and image point of the image histogram processing operations enhancements, smoothing, sharpening concepts and algorithms, and exchanges to handle code and the treatment effect diagram and readers friends, hope to serve as a stimulus.)