Edge detection method and system based on image multi-dimensional analysis

A multi-dimensional analysis and edge detection technology, applied in the field of image processing, can solve the problem of low edge accuracy and achieve the effect of improving edge detection accuracy, reducing elimination, and improving accuracy

Active Publication Date: 2022-01-28
武汉智博通科技有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide an edge detection method and system based on image multi-dimensional an...

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  • Edge detection method and system based on image multi-dimensional analysis
  • Edge detection method and system based on image multi-dimensional analysis
  • Edge detection method and system based on image multi-dimensional analysis

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[0052] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation of an edge detection method based on multi-dimensional analysis of images proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments , structure, feature and effect thereof are described in detail as follows. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention.

[0054] A specific scheme of an edge detection method based on image m...

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Abstract

The invention relates to the technical field of image processing, in particular to an edge detection method and system based on image multidimensional analysis. The method comprises the steps: detecting the edge of a target image through a Canny edge detection algorithm, obtaining a first edge image, carrying out the frequency domain analysis of the target image, obtaining an original spectrogram, processing the original spectrogram, and obtaining a corresponding pixel number difference index, a gray level histogram difference index, an adjacent pixel value difference index and a pixel value difference average value index; calculating according to the indexes to obtain an optimal high-frequency spectrogram selection index, and further determining an optimal high-frequency spectrogram according to the optimal high-frequency spectrogram selection index; and integrating the optimal high-frequency spectrogram and the first edge image to obtain a final edge image, so that the details of the image obtained by a Canny operator can be increased, the noise influence in high-frequency information can be reduced and eliminated, and the edge detection accuracy is greatly improved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an edge detection method and system based on multi-dimensional image analysis. Background technique [0002] When using Canny edge detection, the first step uses Gaussian blur to remove noise, but at the same time it also smooths the edge, which weakens the edge information, and may cause some required edges to be missed in subsequent steps, especially weak edges and Isolated edges, which may be discarded in double thresholding and concatenation calculations. Therefore, only obtaining the edge of the image through Canny edge detection will reduce the accuracy of the obtained edge. Although in the prior art there is an edge image obtained by combining Canny edge detection and high-frequency edge detection, the process of this combination is relatively simple, the combination depth is relatively shallow, and the accuracy of the obtained edge is still relatively low. Con...

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Application Information

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IPC IPC(8): G06T7/13G06T5/00G06T5/10G06T5/40
CPCG06T7/13G06T5/002G06T5/007G06T5/10G06T5/40G06T2207/20056
Inventor 马东风陈玲杰
Owner 武汉智博通科技有限公司
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