Multiple linear parameters algorithm in illumination consistency

According to outdoor scene light estimation, this paper gives a solution based on multiple linear parameters. Broadly, the programs can be divided into three different stages. They are image preprocessing stage, image decomposition stage and light parameter estimation stage. Image preprocessing stage is to guarantee the authenticity and validity of the image data. After analyzing the characteristics of the outdoor lighting, we can decompose the image. It is a linear model between sunlight and skylight. Then we get the multiple linear parameters based on the multiple linear illumination models. We achieve the simulation of each module in the system on MATLAB platform. And we can estimate all the parameters for red, green and black channel. At the same time the estimation of correlation, confidence interval and hypothesis test are achieved. Finally based on the results of the parameter estimation, the image is mixed. The process is real-time and highly efficient and the image mixed is highly lifelike to the original image. This linear model can effectively estimate the outdoor scene illumination parameters.