彩色图像的对比度增强具有较强的工程应用价值，提出了一种简单高效的彩色图像增强算法。该算法基于模糊逻辑理论，配合使用RGB和HSI彩色模型，并依据使对比度变换误差最小的原则，调整灰度变换系数。实验结果表明，该方法的增强效果优于传统的直方图均衡，运行效率高，具有实用价值。

Color image contrast enhancement is very useful in engineering applications, A color image enhancement algorithm is proposed in this paper. It is based on fuzzy logic. The RGB model and HSI model are used. The gray transform coefficient on the minimum error principle is adjusted. The experimental results indicate that the proposed algorithm is better than histogram equalization on effect boost. The image contrast is improved effectively and efficiently.