Title:
IMAGE SIGNAL CONVERSION METHOD AND APPARATUS, AND TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/107114
Kind Code:
A1
Abstract:
Disclosed are an image signal conversion method and apparatus, and a terminal device. The method comprises: obtaining an input primary color signal, wherein the primary color signal is a numerical value of a light signal of a corresponding image, and the primary color signal is directly proportional to the light intensity; and converting the primary color signal to obtain converted image information, wherein the image information is a digital representation value of the image, and the conversion at least comprises processing shown in formula (I), where a, b, m, and p are rational numbers, L is the input primary color signal, and L' is the converted image information. The method can improve the quantization quality.
More Like This:
Inventors:
LI MENG (CN)
CHEN HAI (CN)
ZHENG XIAOZHEN (CN)
ZHENG JIANHUA (CN)
CHEN HAI (CN)
ZHENG XIAOZHEN (CN)
ZHENG JIANHUA (CN)
Application Number:
PCT/CN2015/098503
Publication Date:
June 29, 2017
Filing Date:
December 23, 2015
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04N1/60; H04N5/20; H04N19/186
Domestic Patent References:
WO2014043005A1 | 2014-03-20 | |||
WO2014204865A1 | 2014-12-24 |
Foreign References:
CN105009580A | 2015-10-28 | |||
CN1487487A | 2004-04-07 |
Other References:
See also references of EP 3367657A4
Attorney, Agent or Firm:
GUANGZHOU SCIHEAD PATENT AGENT CO., LTD. (CN)
Download PDF: