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Method for removing color band in enhanced image by combining original image

A technology for enhancing images and images, applied in the field of image processing, can solve problems such as image blur, and achieve the effect of simple algorithm and strong general adaptability

Active Publication Date: 2021-04-13
杭州微帧信息科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this processing method is that some densely textured pixels may be mistaken for color bands and removed during the color banding process, resulting in blurred images

Method used

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  • Method for removing color band in enhanced image by combining original image
  • Method for removing color band in enhanced image by combining original image
  • Method for removing color band in enhanced image by combining original image

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in one or more embodiments of this specification. , the described embodiments are only some of the embodiments in this specification, not all of them. Based on the embodiments of this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, a method of removing the color band in the enhanced image in conjunction with the original image of the present invention specifically includes the following steps:

[0023] 1. Get an enhanced image and its original imag...

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Abstract

The invention discloses a method for removing a color band in an enhanced image by combining an original image, and belongs to the technical field of image processing. The method comprises the following steps of: judging whether a color band is easy to appear on a pixel after image enhancement processing according to a pixel difference value between an original image and a filtered image; and then removing the color band through a simple algorithm in combination with the original image and the filtered image for the pixels which are easy to generate the color band after image enhancement processing. The method provided by the invention can effectively prevent the subjective quality of the image from being influenced by mistakenly removing the pixel with relatively dense texture as the color band. In addition, the algorithm used for removing the color band is unrelated to which image enhancement technology the image is processed, and the method has the advantages of being high in universality, simple, rapid and the like.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for removing color bands in an enhanced image by combining original images. Background technique [0002] The color band (banding) is in a smooth gradient area. Due to the small color change, the number of encoding values ​​​​used to quantify these colors is not enough, so that the gradient color is reflected as a color scale on the display. Color bands generally appear in darker scenes, color transition areas, gradient scenes, dynamic fog, light areas, etc. For low-contrast or blurry, dull pictures, image enhancement processing is generally required, such as adjusting the color scale and enhancing the contrast. The processed image is prone to color banding in areas with gentle gradients (such as the sky), which affects the subjective quality of the image. [0003] In general application scenarios, for images with obvious color bands after enhancement processi...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T5/20
CPCG06T5/20G06T2207/10024G06T2207/20024G06T5/90
Inventor 梅元刚陈宇王明琛孙作潇刘宇新朱政
Owner 杭州微帧信息科技有限公司
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