Image enhancement method and apparatus, electronic device and storage medium

Abstract

The invention provides an image enhancement method and apparatus, an electronic device and a storage medium. The method comprises the steps of determining a to-be-enhanced dark light image; based on a dark light enhancement model, determining an enhanced image of the dark light image, the dark light enhancement model being obtained based on spatial consistency between the sample image and a sample enhanced image of the sample image, and / or image quality constraint training of the sample enhanced image; the sample enhanced image is the enhanced image of the sample image determined based on the dark light enhancement model in training, the enhanced image paired with the sample image does not need to be pre-collected for the sample image in the training process of the model, the model does not depend on paired data any more, and the collection difficulty of the training sample is greatly reduced; the model training is carried out based on the spatial consistency constraint and / or the image quality constraint, so that the trained dark light enhancement model can inhibit the non-natural effect possibly introduced in the dark light enhancement process, the image quality of the output enhanced image is ensured, and the feasibility and reliability of the dark light enhancement are improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image enhancement method, device, electronic equipment and storage medium. Background technique [0002] As an important information carrier, image information promotes the exchange of information. In real life, due to the limitation of natural conditions and technical conditions, there are a large number of dark-light images in massive image data. Such dark-light images have problems such as low brightness, high noise, and distortion, and these problems will seriously affect Subsequent use of computer vision algorithms, such as object detection, instance segmentation, etc. [0003] Current low-light image enhancement methods include filtering-based methods, decomposition-based methods, and deep learning-based methods. Although image enhancement through the above method can improve image quality, it will also bring various problems while improving image qual...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an image enhancement method, device, electronic equipment and storage medium to solve the problem that the dark light enhancement method in the prior art relies on paired training data and brings various problems while enhancing image quality defect

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