Method for improving image quality by adjusting histogram equalization average and circuit for its realization.

摘要

It PRESENTS A METHOD TO IMPROVE histogram equalization an image signal represented by a predetermined number of gray levels. METHOD calculates a cumulative density function and a medium level in a unit of an image, and map A SAMPLE OF ENTRY INTO A NEW LEVEL OF GRAYS by a function transform DEFINED BY THE USE OF cumulative density function and standard level . The method may also include a step to obtain an average LEVEL OFFSET by adding a medium SHINE, SO THE SAMPLE ENTRY LEVEL IS HEREBY mapped offset in accordance with standard level. THIS WAY, YOU MAY BE PERFORMED A SHINE WITH COMPENSATION IMPROVED image contrast.