Reversible Image Processing for Color Images with Flexible Control

In this paper, we propose an image processing method for color images to reversibly achieve flexible functions. Most previous research has focused on reversible contrast enhancement (CE) grayscale images. When directly apply these methods images, hue distortion is caused. Several have been proposed These methods, however, only a CE function. We previously that enhances the brightness and improves saturation. Without losing advantages of our method, new expand ability processing. The achieves not saturation improvement but also sharpening or smoothing increases decreases. It ensures full reversibility thus perfectly reconstructs raw in any case. experimental results demonstrate effectiveness terms quality reversibility.