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A method, system and related components for image edge detection

An image edge, to-be-detected technology, applied in the field of image processing, can solve the problems of discontinuous edge, unclear image edge, noise sensitivity, etc., to achieve the effect of continuous edge information, reducing image edge discontinuity, and reducing influence

Inactive Publication Date: 2018-12-07
GUANGDONG UNIV OF TECH
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  • Claims
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Problems solved by technology

[0003] In the prior art, only the Prewitt operator is usually used for image edge detection, but the Prewitt operator is more sensitive to noise, and the edges of the image are not clear and the edges are discontinuous

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  • A method, system and related components for image edge detection
  • A method, system and related components for image edge detection
  • A method, system and related components for image edge detection

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Embodiment Construction

[0046] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0047] see below figure 1 , figure 1 It is a flow chart of an image edge detection method provided by the embodiment of the present application.

[0048] Specific steps can include:

[0049] S101: Perform region growing on the target picture according to the gray value of each pixel in the target picture, and remove the background of the target pic...

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Abstract

The present application discloses a method for image edge detection, and the method comprises the steps of performing region growth on a target image according to a gray value of each pixel in the target image, and removing the background of the target image according to a region growth result to obtain a to-be-detected image; calculating gray level differences between eight adjacent pixels of each pixel on the image to be detected by using a Prewitt operator, and determining a new gray level of the pixel according to the gray level differences; determining whether the new gray value of the pixel is greater than a preset value; if the new gray value of the pixel is greater than the preset value, setting the pixel as an edge point; and obtaining an image edge of the target image according to all the edge points. The method can reduce local interferences on the image edge detection by noises and reduce conditions of image edge interruption. The application also discloses an image edge detection system, a computer-readable storage medium and an image processing apparatus having the above beneficial effects.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image edge detection method and system, a computer-readable storage medium and an image processing device. Background technique [0002] Edge is the most basic feature of an image, which contains useful information for recognition, and provides an important feature parameter for people to describe or identify objects and interpret images. Edge detection is one of the most classic research contents in the field of image processing, image analysis and computer vision, and it is the basic means for pattern recognition and image information extraction. Mainly use the edge detection operator to extract the edge point set, due to the existence of noise, image blur and edge discontinuity in the detection. In the image, the boundary indicates the end of a feature area and the beginning of another feature area. The internal features or attributes of the area separated...

Claims

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Application Information

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IPC IPC(8): G06T7/13G06T7/194
CPCG06T7/13G06T7/194
Inventor 余荣钟德宝张浩川曾维亮戴凌峰
Owner GUANGDONG UNIV OF TECH
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