Shadow elimination for color image documentation with mobile camera

Abstract

According to the spread of mobile camera devices, imaging applications have been enriched. In document shooting, a highlight or a shadow used to be in the target images. Binarization method are used in most of imaging application for visibility improvement. However, it is not applicable to color documents. Contrast and gamma correction can control the overall visibility of the image, but it is hard to remove local noises. It is difficult to remove only shadows and highlights from images without altering the target information such as the color design or color tone. In this paper, we will propose the technique to achieve improved visibility without losing target information by integrating multiple captured images.