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Image processing method and device

A technology in image processing and image, which is applied in the field of image processing and can solve problems such as loss of image details

Active Publication Date: 2018-11-20
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference in color gamut between different devices, the method of sequentially processing the image to be processed by color enhancement processing and color gamut mapping processing respectively has the problem of losing image details in the process of processing the image to be processed

Method used

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  • Image processing method and device
  • Image processing method and device

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but 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.

[0030] The embodiment of the present invention proposes an image processing method, which is mainly used when an image is mapped from a large color gamut to a small color gamut. The proposed method can be applied to the color gamuts of the two displays of the current terminal and the associated terminal. In relatively small cases, it is possible to perform adaptive processing on the image copied from the current terminal (small color gamut) from th...

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Abstract

The embodiment of the present invention discloses an image processing method and device; the method comprises: acquiring an image copied from an associated terminal; determining whether a color rangeof a first color gamut of a current terminal is smaller than a color range of a second color gamut of the associated terminal, if yes, determining whether a pixel to be displayed in the image belongsto the color range of the first color gamut; when it is determined that the pixel to be displayed in the image belongs to the color range of the first color gamut, performing color enhancement on thepixel to be displayed; and when it is determined that the pixel to be displayed in the image does not to belong to the color range of the first color gamut, performing color gamut mapping process on the pixel to be displayed. The method can realise effective combination of color gamut mapping and color enhancement in order to maintain more image details.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image processing method and device. Background technique [0002] At present, a typical image processing engine will include steps such as color gamut mapping and color enhancement. Among them, color gamut mapping refers to that when a color image is copied between different devices, in order to avoid image distortion caused by the color gamut difference of different devices Mapping transformation due to color loss or distortion. In general, the method of mapping from a small color gamut to a large color gamut is a fixed-point matching linear expansion, but the mapping process from a large color gamut to a small color gamut is more complicated, while keeping the hue unchanged Under the basic principles of image processing, color gamut clipping or color gamut compression can be used, while color enhancement is to adjust the color of the image to saturate and en...

Claims

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Application Information

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IPC IPC(8): G06T7/90G06T5/00G09G3/20
CPCG06T7/90G09G3/2003G09G2320/0242G06T5/00
Inventor 濮怡莹饶洋许神贤
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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