Image processing methods, apparatus, devices, storage media and program products

CN115330621BActive Publication Date: 2026-06-30SPREADTRUM COMMUNICATION (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SPREADTRUM COMMUNICATION (SHANGHAI) CO LTD
Filing Date
2022-08-12
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing technologies, while global histogram equalization algorithms improve the global contrast of images, they lead to a decrease in local contrast and do not consider the temporal transformation of images in video display, thus introducing inter-frame flickering problems.

Method used

By converting an RGB image into a luminance image, dividing it into multiple luminance sub-images, performing statistical, smoothing, and cumulative processing, determining the luminance gain value for each pixel, and adjusting the pixel values ​​of the RGB image based on these gain values, local contrast is improved and inter-frame flicker is reduced.

Benefits of technology

It improves local contrast and detail clarity of the image, while avoiding inter-frame flicker between multiple frames, thus enhancing image quality.

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Abstract

This application provides an image processing method, apparatus, device, storage medium, and program product. The method includes: acquiring an RGB image; converting the RGB image into a luminance image; determining a luminance gain value for each pixel in the RGB image based on the luminance image; and processing the RGB image based on the luminance gain values ​​to obtain a processed RGB image. This improves the local contrast of the image.
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