一种用于移动终端视频图像色彩增强的实时方法

Real-Time Color Enhancement Method Used for Intelligent Mobile Terminals

智能手机在可视通话的过程中,由于摄像头和液晶显示器等硬件性能上的一些局限性,使其在某些条件或环境下采集的视频图像光线昏暗,或者视频图像表现的颜色不够鲜艳、靓丽甚至发生偏色。文章提出一种在硬件具体的特性和性能参数下,对视频图像的明亮可视度以及颜色进行增强的实时方法。在智能手机上的应用和验证显示,该方法不需要额外的芯片就能够改善移动可视电话中视频图像的主观视觉效果,提高亮度、清晰度,并使颜色的表现更丰富、艳丽。

In certain environments and under some conditions, the video images taken by the intelligent mobile video phones seem dark, and the colors are not bright or saturate enough. This paper presents an adaptive method to enhance the video image brightness visualization and the color performance depending on the certain hardware property and function parameters. Through verification, the preferred color reproduction enhancement algorithm makes the worse expressed and some of the particular colors more desirable and brighter. The experimental results prove that this method can enhance the colors and the contrast of the video images, based on the estimated quality feature values of each frame, without using the extra Digital Signal Processor （DSP）.