偏色 meaning in English

colour cast

Automatic illuminations detection and color correction of image using chromatic histogram characters
利用色彩直方图特征进行偏色图象的自动检测和校正
If you were to shoot the same scene with each camera under the same conditions and then compare the results , you would quickly see areas where the color is off or the image is rougher
如果你在同样的条件下用各种相机对同一个场景进行拍摄，并对拍摄结果进行比较，你就会很快发现什么部位有偏色或者那张图像更粗糙。