Image brightness adjustment method and device, storage medium and terminal

Abstract

The embodiment of the invention discloses an image brightness adjustment method and device, a storage medium and a terminal. The method comprises the steps of obtaining a to-be-processed image; Performing scene recognition on the image, and determining the scene type of the image; Inputting the image into a brightness level mapping model corresponding to the scene type; Determining a brightness level corresponding to the image according to an output result of a brightness level mapping model; And carrying out brightness adjustment on the image based on the scene category and the brightness level to generate a brightness-adjusted target image. By adopting the technical scheme, the image brightness is adaptively adjusted according to the scene of the image and the brightness level of the image, a better effect can be achieved on the images with different scenes and different brightness levels, and the applicability of image brightness adjustment is improved. Meanwhile, the brightness level of the image can be simply, rapidly and accurately determined based on the pre-trained brightness level mapping model, and the image brightness adjustment efficiency is improved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of image processing, and in particular, to an image brightness adjustment method, device, storage medium, and terminal. Background technique [0002] With the rapid development of terminal technology, electronic devices such as mobile phones and tablet computers have image acquisition functions, and users have higher and higher requirements for the quality of images collected by terminals. [0003] At present, after the image is collected, brightness processing is generally performed on the image, so as to adjust the brightness of the collected image. In related technologies, image brightness can be adjusted by enhancing image contrast. Classical algorithms mainly include histogram equalization, wavelet transform image enhancement algorithm, partial differential equation image enhancement algorithm and image enhancement algorithm based on Retinex theory. However, these methods Th...

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Problems solved by technology

In related technologies, image brightness can be adjusted by enhancing image contrast. Classical algorithms mainly include histogram equalization, wavelet transform image enhancement algorithm, partial differential equation image enhancement algorithm and image enhancement algorithm based on Retinex theory. However, these methods The brightness adjustment of the image is mainly based on the statistical method, and the image brightness adjustment of the images of different scenes is not targeted, and the image display effect after the brightness adjustment is easy to be poor

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