Color gamut adjusting method and device for color image

A color image and color tone technology, applied in the field of color gamut adjustment methods and devices for color images, can solve the problems of coarse granularity, poor user experience, and unsatisfactory display results, and achieve the effect of improving display effect and fine-grained adjustment.

Active Publication Date: 2014-03-12
ORISE TECHNOLOGY CO LTD
View PDF8 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adjustment granularity of this adjustment method is relatively coarse, and the output

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
  • Color gamut adjusting method and device for color image
  • Color gamut adjusting method and device for color image
  • Color gamut adjusting method and device for color image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] Embodiments of the present invention provide a method and device for adjusting the color gamut of a color image, which can improve the display effect of the image.

[0039] see figure 1 , an embodiment of the color gamut adjustment method of the color image of the present invention includes:

[0040] 101. Perform color space conversion on the color image in the RGB color space to obtain the hue of each pixel of the color image;

[0041] Because the color gamut of ...

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 embodiment of the invention discloses a color gamut adjusting method and a device for a color image. The color gamut adjusting method comprises the following steps: carrying out color space conversion on the color image in an RGB (Red, Green, Blue) color space to obtain tone of each pixel point; evenly dividing a circular distribution diagram into N axes according to the number N of primary colors, wherein the axes represent the primary colors, and angles formed between the axes represent assorted colors; according to the position of the tone of each pixel point in the color image on the circular distribution diagram and a preset algorithm, calculating a saturation gain value of each pixel point, and adjusting the saturation of each pixel point according to the saturation gain value of each pixel point; converting the color image after saturation adjustment back to the RGB color space; converting the color image after saturation adjustment from the RGB color space to an RGBW (Red, Green, Blue, White) color space and outputting the color image. According to the embodiment of the invention, the saturation is adjusted according to different tones to enable the color gamut of an input image to fall in a color gamut range which can be displayed by an output display, and a display effect of the image can be improved.

Description

technical field [0001] Embodiments of the present invention relate to image processing technologies, and in particular, to a color gamut adjustment method and device for a color image. Background technique [0002] A color gamut is a complete subset of colors defined using volumes. The red, green, blue RGB color space is a standard well-known color space definition. The color space of many images follows the definition of the RGB color space, such as pictures saved in the RGB space and videos in the BT.709 format or xvYCC format recommended by ITU-R. [0003] Most of the images input by the RGB color space need to be displayed on the red, green, blue, and white RGBW monitors, and the images input by the RGB color space have a larger color gamut, and the RGBW monitors such as notebook computer monitors can display images with a larger color gamut Therefore, before displaying the image on an RGBW display, the color gamut of the input image in the RGB color space must be adju...

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): H04N9/64
Inventor 许瀚仁王建国
Owner ORISE TECHNOLOGY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap