BETTER CONTRAST/NOISE BY RESIDUE IMAGE

摘要

A method for contrast-enhancing in a multi-dimensional image in image locally detects a contrast quantity. This quantity is determined to be either in a low range or in a high range. When in the high range, the contrast is locally enhanced with an enhancement factor that is a monotonic non-increasing function of the local contrast. After enhancing, the contrast itself is a monotonically increasing function of the contrast before enhancing.