中文说明：颜色恒常性是颜色的衡量物体独立光源的颜色的能力。灰色世界的假设，即在一种知名的颜色恒常性方法的基础上，假定在世界中的物体表面的平均反射率是无色的。在我们的研究中，我们研究了延长这个简单的算法对图像序列的高顺序衍生结构的可能性。我们建议的灰色边缘假设，假定在一个场景中的平均边缘差异是消色差。基于这一假设，推导出一种光源颜色估计算法。方法容易灰色阴影和灰色世界、 马克斯 RGB 并入一个单一的框架的颜色恒常性基于低级别的图像特征 （matlab 程序代码是可用的）。
English Description：
Color constancy is the ability to measure colors of objects independent of the color of the light source. The Grey-World assumption, which is at the basis of a well-known color constancy method, assumes that the average reflectance of surfaces in the world is achromatic. In our research we investigated the possibility of extending this simple algorithm to the higher order derivative structure of images. We propose the Grey-Edge hypothesis, which assumes that the average edge difference in a scene is achromatic. Based on this hypothesis, we derive an algorithm for illuminant color estimation. The method is easily combined together with Grey-World, max-RGB and Shades of Grey into a single framework for color constancy based on low level image features (matlab code is available).