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Image region tone adjustment method and device, storage medium and equipment

A color tone adjustment and image area technology, applied in the field of image processing, can solve the problems of high chip design difficulty and a large amount of storage space required for regional color matching schemes, and achieve the effects of high precision, reduced difficulty, and low computational complexity

Pending Publication Date: 2020-07-03
昇显微电子(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a method for adjusting the color tone of an image area, which solves the problem that the area color scheme in the prior art needs a large amount of storage space and the chip design is difficult

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  • Image region tone adjustment method and device, storage medium and equipment
  • Image region tone adjustment method and device, storage medium and equipment
  • Image region tone adjustment method and device, storage medium and equipment

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Embodiment Construction

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, 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 creative efforts fall within the protection scope of the present invention.

[0029] The image area tone adjustment method in this embodiment is as follows: figure 1 shown, including:

[0030] Step S1, convert the original image from RGB color gamut to YC b C r Color gamut, that is, calculate the Y, C of the image from the R, G, and B values ​​​​of the image pixels b 、C r value, Y refers to the luminance component, C b refers to the blue chrominance component, while C r Refers to the red chroma component.

[0031] Step S2, for YC b C r The image under the color gamut...

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Abstract

The invention relates to the technical field of image processing, and discloses an image region tone adjustment method and device, a storage medium and equipment. The method comprises the following steps: S1, converting an original image from an RGB color gamut to a YCbCr color gamut; s2, performing tone adjustment on the image under the YCbCr color gamut according to a preset tone adjustment matrix; s3, converting the hue-adjusted image from a YCbCr color gamut to an RGB color gamut to obtain a converted image; s4, calculating a hue value of each pixel of the image before hue adjustment in aYCbCr color gamut; and S5, judging whether the hue value of each pixel is in the corresponding hue range or not according to the preset hue range, if so, outputting the pixel value of the pixel corresponding to the converted image, and otherwise, outputting the pixel value of the pixel corresponding to the original image to form an adjusted image. The method disclosed by the invention is low in calculation complexity, and only needs a small amount of storage space, so that the difficulty of chip design is reduced, and the power consumption and the cost of the chip can be effectively reduced.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method, device, storage medium and equipment for adjusting the color tone of an image area. Background technique [0002] Hue refers to the relative lightness and darkness of an image, expressed as color on a color image. at YC b C r In the coordinate system, the hue Hue can be calculated according to the following formula, that is, the hue and C b 、C r Relationship. [0003] [0004] In image display applications, some color tones need to be adjusted according to personal preference, while other tones remain unchanged. For example, skin tone adjustments. Most of the traditional technical solutions are based on the method of looking up tables to adjust the color tone, which requires a large amount of storage space and is difficult to design chips. Contents of the invention [0005] The invention proposes a method for adjusting the color tone of an i...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T7/90
CPCG06T7/90G06T2207/10024G06T5/90
Inventor 吴樟福秦良
Owner 昇显微电子(苏州)有限公司