Contrast Enhancement and Detailed Enhancement Method Based on Non-Linear Filtering

Smart phones with camera devices and media networks such as the internet and have been widely used, and images are used on SNS (Social Network Security). There are a lot of images which have low contrast. So, contrast enhancement, which is a technique to adjust brightness of images, is one of the important image processing technologies and is required. In this paper, we propose a contrast enhancement method based on non-linear filters. Experimental results show that reconstructed images are good contrast and image quality.