Image processing method, image processing system, and non-transitory computer readable storage medium for processing image with one or more brightness ranges
US12293486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2022 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Sep 15, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing method includes following operations: generating, by a processor, a sliding window for a target pixel in a plurality of pixels in image data; generating, by the processor, an original brightness histogram of the sliding window according to an original bit depth; generating, by the processor, a low-bit-depth brightness histogram of the sliding window according to a low bit depth; determining, by the processor, a target low-bit-depth range from the low-bit-depth brightness histogram according to the target pixel; extracting, by the processor, a partial original brightness histogram from the original brightness histogram according to the target low-bit-depth range; and performing, by the processor, a histogram equalization process on the partial original brightness histogram according to the original bit depth to generate a final brightness value of the target pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.