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Picture processing method and device

An image processing and pixel technology, applied in the field of information processing, can solve problems such as oversaturation of skin color, affect the overall effect of the image, sensitive skin color, etc., and achieve the effect of enhancing the color of the image

Active Publication Date: 2015-07-08
HUAWEI TECH CO LTD
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Problems solved by technology

[0010] Through the above LUT table lookup method, the saturation of the image can be effectively enhanced while keeping the hue and brightness unchanged. However, due to the optical characteristics of the human eye, it is more sensitive to changes in skin color, and the same saturation enhancement factor s is used. Saturation enhancement processing of skin and non-skin color in the same color gamut will cause skin color to be oversaturated, thus affecting the overall effect of the image

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Embodiment Construction

[0086] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0087] Embodiments of the present invention provide an image processing method and device for skin color protection, so that skin color changes naturally.

[0088] First, a brief introduction to the gamut factor: the gamut factor is used to indicate the color gamut range to which the pixel belongs. In the LUT table provided by the saturation enhancement processing of the existing image, the gamut factor corresponds to different color gamut ranges, and the saturation...

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Abstract

The embodiment of the invention discloses a picture processing method and device. The method and device are used for skin protection and enable a skin change to be more natural. The method comprises the steps that a picture to be processed is obtained, and domain factors of source pixel points of the picture to be processed are obtained; whether the colors of the source pixel points are a skin color is judged, if yes, a skin color enhancement factor list corresponding to the domain factors is searched for in a lookup table LUT; skin color enhancement factors corresponding to the colors of the source pixel points are searched for in the skin color enhancement factor list; saturation enhancement processing is conducted on the source pixel points according to the skin color enhancement factors, and target pixel points are obtained.

Description

technical field [0001] The present invention relates to the technical field of information processing, in particular to an image processing method and device. Background technique [0002] With the development of light-emitting diode (LED) technology, Wide Color Gamut (WCG) technology has created a new generation of color gamut standards on display devices. Through wide color gamut technology, display devices It can display more vivid colors and give users better visual effects. [0003] The wide color gamut technology is to convert the image of the general color standard (Standard Red Green Blue, sRGB) color gamut into a wide color gamut image for display. The wide color gamut image has a wider color gamut and richer colors, and can present sRGB The range of colors that an image cannot represent. Wide color gamut technology can be used on wide color gamut display devices, and can also be used on non-wide color gamut display devices. Among them, wide color gamut display de...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/64
Inventor 李蒙
Owner HUAWEI TECH CO LTD
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