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Image processing method and device

A technology for image processing and target images, which is applied in image data processing, image enhancement, image analysis, etc., and can solve problems such as the influence of display effects and the high pixel value of W sub-pixels

Pending Publication Date: 2021-06-08
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Embodiments of the present invention provide an image processing method and device to solve the problem that the pixel value of the W sub-pixel is too high, which affects the display effect

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Embodiment Construction

[0048]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 creative efforts fall within the protection scope of the present invention.

[0049] An embodiment of the present invention provides an image processing method.

[0050] The technical solution of this embodiment is mainly applied to image processing when an image in a red, green, blue, and blue RGB format is displayed on a red, green, blue, and white RGBW display device.

[0051] In the process of implementing the technical solution of the present application, the relevant technical personnel found that when an image in RGB forma...

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Abstract

The invention provides an image processing method and device. The image processing method comprises the steps of determining high-saturation pixels in a target image, wherein the saturation of the high-saturation pixels is larger than a preset saturation threshold value, and the brightness value of the high-saturation pixels is larger than a brightness threshold value; determining a high-brightness pixel located in a neighborhood of the high-saturation pixel and a characteristic value of the high-brightness pixel, wherein the saturation of the high-brightness pixel is less than or equal to the saturation threshold, and the brightness value of the high-brightness pixel is greater than the brightness threshold; and marking the pixel of which the difference value between the characteristic value and the characteristic value of the high-brightness pixel is smaller than a preset characteristic value difference threshold value as a target pixel of which the brightness is to be reduced. According to the embodiment of the invention, the possibility of color distortion is reduced, the brightness loss is reduced, and the display effect is improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an image processing method and device. Background technique [0002] RGBW (red, green, blue and white) display technology is an image display method in which each pixel includes red, green, blue and white four-color sub-pixels. The W sub-pixel has a high light transmittance, which helps to improve display brightness and save power consumption. In related technologies, images in RGB (red, green, and blue) format are usually converted into signals matched by RGBW display devices through a specific mapping algorithm, wherein the main purpose of the correlation mapping algorithm is to improve the pixel value of W sub-pixels. In some cases, if the pixel value of the W sub-pixel is too high, the visual effect of the sub-pixels of other colors will be diluted, which will affect the display effect. Contents of the invention [0003] Embodiments of the present invention provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/90
CPCG06T7/90G06T2207/10024G06T5/94
Inventor 彭项君孙炎史天阔张小牤张硕楚明磊侯一凡姬治华
Owner BOE TECH GRP CO LTD