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Detection method of color edge, and image processing device

A technology of image processing equipment and detection method, which is applied in the field of image processing, can solve problems such as inability to detect and determine color edges, and achieve the effect of edge detection

Active Publication Date: 2015-02-11
SHENZHEN TENCENT COMP SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, commonly used edge detection algorithms are widely used such as Canny operator, Sobel operator, Gaussian Laplacian operator, etc. However, this type of algorithm cannot detect the edge of a specified color, and cannot Determining color fringes in an image

Method used

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  • Detection method of color edge, and image processing device
  • Detection method of color edge, and image processing device
  • Detection method of color edge, and image processing device

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Embodiment Construction

[0023] Embodiments of the present invention provide a color edge detection method and an image processing device, which are used to detect the edge of a specified color in an image, and can effectively obtain the edge of the color.

[0024] see figure 1 , is an embodiment of the color edge detection method in the embodiment of the present invention, including:

[0025] 101. Obtain the pixel value of the color to be detected;

[0026] In this embodiment of the present invention, after the image processing device imports the image to be tested, the user can determine the color for edge detection. Specifically, the user can output the pixel value of the color for edge detection, or the user can click on the image to be detected. , after the image processing device detects the click operation, it determines the pixel point of the position of the click operation, and the pixel value of the pixel point is used as the pixel value of the color to be detected. Therefore, the image pro...

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Abstract

The embodiments of the invention disclose a detection method of a color edge, and an image processing device. The method provided by one embodiments of the invention comprises the following steps: obtaining a pixel value of a color to be detected; calculating a distance between an original pixel value of each pixel point in an image to be detected and the pixel value of the color to be detected, taking the distances as the first pixel values of the corresponding pixel points, and obtaining a first image; and by use of a local self-adaptive binary algorithm, performing binary processing on the first pixel values of all the pixel points in the first image to obtain a second image, and edge pixel points displaying the color in the second image determining the edge of the color, such that edge detection of a specific color in an image is effectively realized.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a color edge detection method and an image processing device. Background technique [0002] Image processing is often used to separate objects to be recognized from the background, such as recognizing cars from the road, extracting text from paper, recognizing workpieces from conveyor belts, and so on. These scenes have some common characteristics: the background has a certain shallow texture or unevenness due to itself and optical fibers, and the difference between the foreground and the background on the edge is obvious, and in a fixed application scene, the background itself is basically Invariably, for this type of image processing, edge detection methods are usually used. [0003] In the prior art, commonly used edge detection algorithms are widely used such as Canny operator, Sobel operator, Gaussian Laplacian operator, etc. However, this type of algorithm cannot detect the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
Inventor 陈泳君
Owner SHENZHEN TENCENT COMP SYST CO LTD