Efficient image enhancement using illumination map technique

Digital scenes are used in many applications like object detection and tracking medical applications and satellite images and many other PC based applications. Pictures captured during day time having a good visibility with high dynamic range and useful for extracting the details. But the pictures captured during night time or in low light condition having a low dynamic range with noise and indistinguishable details. A simple yet effective ALM method is proposed. More concretely, the explanation of each pixel is first probable individually by sentence the greatest value in R, G and B channels. Further, we refine the initial illumination map by imposing a structure prior on it, as the final illumination map. Having the well construct clarification map, the improvement can be achieved consequently. Experiments on a number of challenging low-light images are present to reveal the efficacy of our enhancement and show its superiority over several state-of-the-arts in terms of image quality and efficiency.