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

Abstract

The invention 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 comprises an image sensor, a high dynamic fusion unit and an image processor. The pixel array is exposed at a first exposure time to obtain a first original image, and is exposed at a second exposure time to obtain a second original image. The image processor and the high-dynamic fusion unit are used for performing image preprocessing, high-dynamic range processing, image processing and fusion algorithm processing on the first original image and the second original image to obtain a target image. According to the high dynamic range image processing system and method, the electronic equipment and the computer readable storage medium, at least two times of exposure are carried out by controlling the pixel array, and a plurality of images are generated according to different exposure times and differentphotosensitive pixels, and image preprocessing, high dynamic range processing, image processing and fusion algorithm processing are performed on the images to obtain a target image with a high dynamic range.

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, electronic equipment, and a computer-readable storage medium. Background technique [0002] Ordinary cameras cannot record extremely bright or dark details due to the limited dynamic range. Especially when the light in the shooting scene is relatively large, it is easy to overexpose or underexpose. A camera with a high-dynamic range (High-Dynamic Range, HDR) function can capture images under a large light ratio, and can perform better than ordinary cameras in both high light and dark positions. 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 highlights; or select the photosensitive pixels with a logarithmic response curve, resulting The speed at whic...

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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