Title:
IMAGE ENHANCEMENT PROCESSING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/189222
Kind Code:
A1
Abstract:
Provided are an image enhancement processing method and device. The image enhancement processing method comprises: acquiring a histogram of an image to be processed; dividing the histogram into n sub-histograms, n being a positive integer; calculating a mapping curve of each of the n sub-histograms, a first sub-histogram being any one of the n sub-histograms; synthesizing mapping curves of the n sub-histograms to obtain a mapping curve of the histogram; performing, according to the mapping curve of the histogram, enhancement processing on said image. The prevent invention not only achieves the purpose of fine adjustment, but also considers the adjustment of both brightness distribution and contrast distribution, achieving the purpose of balancing.
Inventors:
CAO YINAN (CN)
ZHANG WENHONG (CN)
SHAO TAO (CN)
ZHANG WENHONG (CN)
SHAO TAO (CN)
Application Number:
PCT/CN2020/080774
Publication Date:
September 30, 2021
Filing Date:
March 24, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06T5/00
Foreign References:
| CN107945122A | 2018-04-20 | |||
| CN101452575A | 2009-06-10 | |||
| CN106530237A | 2017-03-22 | |||
| CN102831592A | 2012-12-19 | |||
| KR20160002517A | 2016-01-08 |
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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