High dynamic range image processing system and method, electronic device and storage medium

Abstract

The application discloses a high dynamic range image processing system and method, electronic equipment, and a computer-readable storage medium. The high dynamic range image processing system includes an image sensor, a high dynamic fusion unit and an image processor. The pixel array is exposed with a first exposure time to obtain a first original image, and exposed with a second exposure time to obtain a second original image. The image processor and the high dynamic fusion unit are used to perform image preprocessing, high dynamic range processing, image processing and fusion algorithm processing on the first original image and the second original image to obtain the target image. The high dynamic range image processing system and method, electronic device, and computer-readable storage medium in the embodiments of the present application perform at least two exposures by controlling the pixel array, and generate multiple images according to different exposure times and different photosensitive pixels, and then The image is subjected to image preprocessing, high dynamic range processing, image processing and fusion algorithm processing to obtain a high dynamic range target image.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular, to a high dynamic range image processing system and method, an electronic device and a computer-readable storage medium. Background technique [0002] Ordinary cameras cannot record extremely bright or dark details due to their limited dynamic range. Especially when the light of the shooting scene is relatively large, it is easy to overexpose or underexpose. A camera with High-DynamicRange (HDR) function can capture images in the case of large light ratio, whether it is bright or dark, it can have better performance than ordinary cameras. Some high dynamic range cameras with high dynamic range function use a higher sensitivity pixel array, while increasing the shutter speed to reduce exposure to preserve more highlight detail; The speed at which the photosensitive pixels reach light saturation slows down, which puts forward higher requirements on the hardwa...

AI Technical Summary

Problems solved by technology

Some high dynamic cameras with high dynamic range function use pixel arrays with higher sensitivity, and at the same time increase the shutter speed to reduce the exposure to save more details of the highlight part; The speed at which the photosensitive pixels reach light saturation slows down, which puts higher requirements on the hardware parameters of the image sensor of the high dynamic camera, which increases the cost and makes the design more difficult, which is not conducive to the mass production of products

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