Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Display screen gamma correcting method and device thereof

A calibration method and calibration device technology, applied to static indicators, instruments, etc., can solve the problems of large storage space, time-consuming iterative update, etc., and achieve the effect of saving time, fast and effective gamma correction, and realizing gamma correction

Active Publication Date: 2019-01-04
EDAN INSTR
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the way of iteratively updating the lookup table requires considerable storage space, and the process of iteratively updating and reading data from the memory is very time-consuming

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Display screen gamma correcting method and device thereof
  • Display screen gamma correcting method and device thereof
  • Display screen gamma correcting method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.

[0036] see figure 1 , the present invention provides a display screen gamma correction method, comprising the following steps:

[0037] Step S11, collecting screen brightness information of different gamma values ​​of the standard screen and the test screen.

[0038] Step S12, selecting a plurality of preset gray scales, and comparing the difference between the screen brightness information of the corresponding standard screen and the screen brightness information of the test screen to obtain multiple sets of preselected gamma value combinations.

[003...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a display screen gamma correction method and device thereof. The display screen gamma correction method comprises the steps that acquiring the screen brightness information of different gamma values of a standard screen and a test screen; selecting a plurality of preset gray scales, and performing the difference value comparison on the screen brightness information of the corresponding standard screen and the screen brightness information of the test screen to obtain a plurality of groups of pre-selected gamma value combinations; drawing a gray curve of the test screen and a grey curve of the standard screen based on the plurality of groups of pre-selected gamma value combinations; and determining a gamma value combination, namely the optimal gamma value combination,corresponding to the gray-scale curve of the test screen closest to the gray-scale curve of the standard screen. The method and the device have the advantages that a large number of iterative updating is avoided, and time consumption for correction is reduced.

Description

technical field [0001] The invention relates to the field of screen display, in particular to a display screen gamma correction method and a device thereof. Background technique [0002] Generally speaking, the generation of luminance on a physical display device is usually not directly proportional to its input signal, but has a certain nonlinear power exponential relationship. The exponential parameter of the input signal is called gamma value. Under normal lighting conditions, human vision and input signals generally have the properties of gamma or power functions. If the image is not gamma-corrected, the use of data bits or bandwidth will be unevenly distributed, and there will be too many data bits. Or the bandwidth is used to represent differences that humans cannot perceive at all, and there will be insufficient data bits or bandwidth to represent the very sensitive range of human visual perception. Gamma correction is a non-linear operation or inverse operation for ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0276G09G2320/0673
Inventor 凌锋张凤姝
Owner EDAN INSTR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com