Method of enhancement of low luminance image

摘要

A low-light image enhancement method is provided. The low-illuminance image enhancement method includes: receiving a unit-image-block-containing image, generating a luminance component signal and a color component signal from the image by the road, converting the luminance component signal to a road, Frequency coefficient, and the roadway luminance signal component is a first low-frequency coefficient that improves the contrast to produce a second low-frequency coefficient, and the roadway luminance component signal is a first low-frequency roadway road, High-Frequency Coefficient It calculates the contrast factor, and the first high-frequency coefficient to the road. It applies the increase in entropy to the second high-frequency coefficient and the second high-frequency coefficient to the roadway. It produces the contrast and the luminance component signal to the road. Using color components as a road signal it involves improving contrast .;