A Novel Method for Image Color Constancy by Using 2 Order Gray Edge Algorithm with Bilateral Filter

The methodology is proposed to extension of existing method applying local color constancy to image patches, rather than on entire image globally. Many algorithms have to estimating the color constancy of the light sources are developed, but all existing methods are applied on single light source i.e they are consider an image is effected only single uniform illumination, this case is not every time, because images are effected more than one illuminations. The illumination of single light source is violated by illumination of multiple sources of light. Here we will discuss a new methodology it considers an image is affected by various light sources, without any information about the color of light sources. The technique grid based sampling and keypoint based sampling along with grey edge algorithm can be used to estimate the color of multiple lights. Finally the color correction gives the most promising and also it has to provide consistency of these algorithms over various types of images taken from different datasets. This proposed method gives better results than previous methods for color constancy.