Image enhancement method and device, apparatus and storage medium

Abstract

The invention relates to an image enhancement method and device, an apparatus and a storage medium. The image enhancement method comprises the following steps of firstly, separating and extracting a brightness component and a chrominance component of an image, then extracting the ambient illumination information in the brightness component to obtain an illumination component, carrying out brightness correction on the brightness image by utilizing the illumination component to obtain a corrected brightness component, and then combining the chrominance component to obtain an enhanced image. Since the brightness of the image is adjusted on the basis of the environment brightness information carried by the image during the whole adjusting process, the brightness of the image can be adjusted in an adaptive manner, a weak light area is enhanced, a strong light area is weakened, the illumination balance is achieved, the enhancement effect is better, and the color distortion of the image is extremely small.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image enhancement method, device, equipment and storage medium. Background technique [0002] Digital image processing systems have been widely used in industrial production, video surveillance, intelligent transportation, remote sensing monitoring and other fields, and play an important role in them. The actual image acquisition process will always be affected by various factors, resulting in various defects in the obtained image, especially when the lighting conditions are poor, because the light reflected by the target to be collected is weak or uneven, the obtained image The color of the image is distorted and contains a lot of noise, which seriously affects the overall quality of the image. It not only affects the visual experience of the human eye, but also affects the accuracy of subsequent image segmentation, target recognition and other processing pro...

AI Technical Summary

Problems solved by technology

The actual image acquisition process is always affected by various factors, resulting in various defects in the obtained image, especially when the lighting conditions are poor, because the light reflected by the target to be collected is weak or uneven, the obtained image The color of the image is distorted and contains a lot of noise, which seriously affects the overall quality of the image, not only affects the visual experience of the human eye, but also affects the accuracy of subsequent image segmentation, target recognition and other processing processes

[0003] In order to eliminate these adverse effects as much as possible, a variety of image enhancement methods have been proposed in related technologies, but most of these methods process the image as a whole. The image processing effect of darker and brighter areas is not very good. It is especially easy to enhance the dark areas while over-enhancing the bright areas, or to cause problems such as noise amplification. The adaptability is poor.

Images