METHOD FOR ENHANCING LOCAL CONTRAST OF AN IMAGE

摘要

A method for enhancing local contrast of an image. The method comprises receiving a component of an image, computing a wavelets decomposition of the received component into wavelet coefficients, determining at least three subsets of wavelets coefficients based on a first threshold, a second threshold and computed wavelet coefficients, modifying the determined at least three subsets by applying at least a sharpening transformation on wavelet coefficients of at least one subset in said at least three subsets, recombining the at least three subsets into final wavelet coefficients, and reconstructing a new component based on the final wavelet coefficients.

主权项

1. A method for enhancing local contrast of an image, wherein the method comprises:
receiving a component of an image; computing a wavelets decomposition of the received component into wavelet coefficients; determining at least three subsets of wavelets coefficients based on a first threshold, a second threshold and computed wavelet coefficients; modifying the determined at least three subsets by applying at least a sharpening transformation on wavelet coefficients of at least one subset in said at least three subsets; recombining the at least three subsets into final wavelet coefficients; and reconstructing a new component based on the final wavelet coefficients.