食物图像的色彩增强算法研究与实现

Research and Implementation of Color Enhancement Algorithm in Food Image

摘要: 针对拍摄的食物照片的后处理需求，现有方法不适用的问题，提出了一种食物图像的色彩增强算法。该算法采用HSI和HSV两种颜色空间联合处理，利用设计的饱和度矫正曲线和符合食物色彩特征的色调参数曲线做加权矫正，以及设计的亮度矫正曲线处理。该算法针对于食物图像的色彩增强，弥补了食物色彩增强算法方面的空缺。实验结果表明，该方法可以大大提高食物图像的主客观质量。本文提出的食物图像的色彩增强算法，针对食物色彩特征进行设计，采用两种颜色空间联合处理，得到适用于食物图像的增强效果。

Abstract: Because the conventional methods are not suitable for the post-processing of food image, we pro-pose a color enhancement algorithm in food image. The algorithm is processed in HSI and HSV color space, using designed correction curve of color saturation with parameter curve of hue, which corresponds to the feature of food image, and uses designed correction curve of brightness. This algorithm is targeted at color enhancement of food image and fills the blank of color enhancement algorithms in food image. Experimental results show that the algorithm can greatly improve the subjective and objective quality of food image. The color enhancement algorithm in food image that we proposed is designed with the characteristics of food image, combined with the use of two color spaces, to get an enhancement result which is suitable for food image.