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Image Texture Filtering Method Based on Weighted Median Filtering

An image texture and weighted median technology, which is applied in image data processing, image enhancement, image analysis, etc., can solve the problems of fuzzy image structure boundary and inability to handle texture information well, and achieve the effect of good structure boundary

Active Publication Date: 2017-08-15
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the characteristics of the bilateral filtering algorithm, the algorithm of Cho et al. will blur the structural boundary of the image to a certain extent and cannot handle the texture information of extreme changes well (see Cho H, Lee H, Kang H, LeeS.Bilateral texture filtering. ACM Transactions on Graphics, 2014, 33(4): 1-8)

Method used

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  • Image Texture Filtering Method Based on Weighted Median Filtering
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  • Image Texture Filtering Method Based on Weighted Median Filtering

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Embodiment Construction

[0028] The present invention will be further elaborated below through the embodiments in combination with the schematic flow chart.

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings: image texture filtering method based on weighted median filtering; this embodiment is implemented on the premise of the technical solution of the present invention, and combines detailed implementation methods and processes, but the present invention The scope of protection is not limited to the following examples.

[0030] Such as figure 1 As shown, the image texture filtering method based on weighted median filtering described in this embodiment can be divided into the following five steps:

[0031] (1) Given a two-dimensional image as the input image I, its width and height are recorded as W and H pixels respectively, and the pixels in I are recorded as p=(x, y), then x∈{0,1, 2,...,W-1}, y ∈ {0, 1, 2,...,H-1}. The pixel value of p ...

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Abstract

The invention provides an image texture filtering method based on weighted median filtering. This method can be briefly summarized as the following five steps: the user gives an image as an input image; performs a mean filtering operation based on the input image to obtain a mean filtered image; calculates an improved relative total change image based on the input image ;According to the improved relative total change image interpolation input image and mean filtered image to obtain a guide image; calculate the weight according to the guide image, use weighted median filtering to perform texture filtering operation on the input image, and obtain the texture filtered image . This method performs texture filtering operations on images based on weighted median filtering, and proposes a new method for calculating guided images. At the same time, compared with existing algorithms, this method can better handle the extreme changes in texture information contained in the image.

Description

technical field [0001] The invention relates to an image texture filtering method, in particular to an image texture method based on weighted median filtering. Background technique [0002] Image texture filtering algorithm refers to the use of algorithms to remove the complex texture information contained in the image while keeping the significant structural information in the image from being weakened. Image texture filtering algorithms are widely used in image processing, machine vision, pattern recognition and other fields. For example, the image texture filtering algorithm can be used to remove some densely distributed noise information contained in the image, and can be used as a preprocessing operation to improve the effect of edge detection, etc. Due to the importance of image texture filtering algorithms, many algorithms have been proposed for texture filtering operations. [0003] Based on boundary-preserving image filtering algorithms, this type of algorithm reg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/20032G06T5/92
Inventor 赵汉理姜磊
Owner WENZHOU UNIVERSITY
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