Filtering method and device based on multichannel noise detection

A technology of noise detection and filtering device, applied in the field of image processing, can solve the problems of misjudgment and missed judgment, loss or damage of image edge details, wide spread of noise points, etc., to improve speed and accuracy, excellent ability to suppress The effect of impulse noise

Inactive Publication Date: 2017-01-11
GUANGDONG UNIV OF TECH
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Problems solved by technology

However, these methods are prone to many misjudgments and missed judgments in the detection stage, and it is easy to cause noise points to spread widely in the image in the filtering stage, and the edge details of the image are lost or damaged.

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  • Filtering method and device based on multichannel noise detection
  • Filtering method and device based on multichannel noise detection
  • Filtering method and device based on multichannel noise detection

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[0040] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only 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.

[0041] A flow chart of a specific implementation of the filtering method based on multi-channel noise detection provided by the present invention is as follows figure 1 As shown, the method includes:

[0042] Step S101: Acquiring a color image to be detected;

[0043] Step S102: Perform noise point detection on each color channel of the color image to obtain three sub-channel noise identification matrices; ...

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Abstract

The invention discloses a filtering method and device based on multichannel noise detection, and the method comprises the steps: obtaining a to-be-detected color image; carrying out the detection of noise points of each color channel of the color image, and obtaining three sub-channel noise identification matrixes; obtaining the noise identification matrix of the color image through the sub-channel noise identification matrixes; carrying out the filtering of pulse noise points in the color image according to the noise identification matrix of the color image, and obtaining a filtered image. According to the invention, the method and device can quickly and effectively inhibit pulse noises, enables the capability of protecting the image edge information and detail features to be more excellent, and improves the image filtering speed and accuracy.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a filtering method and device based on multi-channel noise detection. Background technique [0002] In image processing, whether it is in the process of image generation or image application, it will be disturbed by various noises, the most common of which is the interference by impulse noise. Impulse noise will cause the image to present randomly distributed black and white noise points, which greatly reduces the image quality. In recent years, there has been an upsurge in the study of color image filtering and denoising algorithms. Color image filtering methods are currently divided into two categories, namely component-based filtering methods and vector-based filtering methods. [0003] The filtering method of the component form is to first filter the three sub-channels R, G, and B of the color image separately, and then synthesize a new color image. Component filt...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T5/002G06T2207/10024G06T2207/20024G06T2207/20182
Inventor 熊园园钟灵唐平
Owner GUANGDONG UNIV OF TECH
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