Visible Entropy: A Measure for Image Visibility

Image visibility is a fundamental issue in the field of computer vision. This paper investigates the connection between histogram and image visibility, where the concept of entropy is employed to depict the information content of the histogram. It turns out that image visibility is more dependent on the observed intensity levels with higher frequencies and the distribution of their locations in the range of intensity levels. With this in mind, the concept of visible entropy is proposed. The usefulness of the proposed visibility measure has been evaluated using a number of realistic images.