| 徐晓昭， 蔡轶珩， 刘长江， 贾克斌， 沈兰荪 |
（北京工业大学 信号与信息处理研究室，北京 100022） |
 摘要：采用一种基于等效圆的偏色检测方法，克服了传统方法在图像偏色检测中的局限性。为了对检测后的偏色图像进行校正，采用一种结合灰度世界和完美反射的颜色校正方法，弥补了传统方法的不足，从而得到更为“真实”的校正图像。实验结果表明，基于图像分析的偏色检测及颜色校正方法，提高了偏色检测的可靠性，取得了较好的颜色校正效果。该方法仅利用图像本身的特征进行分析，具有普遍的适用性。 |
| 关键词：图像分析；偏色检测；颜色校正 |
| 中图分类号：TP391 文献标识码：A 文章编号：1000-8829(2008)05-0010-03 |
| Color Cast Detection and Color Correction Methods Based on Image Analysis |
| XU Xiao-zhao, CAI Yi-heng, LIU Chang-jiang, JIA Ke-bin, SHEN Lan-sun |
| (Signal & Information Processing Laboratory,Beijing University of Technology,Beijing 100022,China) |
| Abstract：A color cast detection method based on equivalent circle is applied,which overcomes the limit of traditional methods of detecting image color cast.In order to correct color cast of detected image,the color correction method of combing gray world and prefect reflector is applied,which offsets the defect of traditional methods and gets more “real” corrected image.Experiment results show that color cast detection and color correction methods based on image analysis enhance the reliability of color cast detection,and achieve good color correction effects.The proposed methods only use feature of image to analyze,and have universal applicability. |
| Key words：image analysis;color cast detection;color correction |
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