Image edge detection method and device

Abstract

The present invention provides an image edge detection method and device. Through the image edge detection method provided by the embodiment of the present invention, after obtaining the first-order edge detection operator and the second-order edge detection operator corresponding to M initially set windows Ni , the first-order edge detection image can be obtained by using M first-order edge detection operators and the second-order edge detection image can be obtained by using M second-order edge detection operators; then the first-order edge detection image and the second-order edge detection image can be logically ORed operation to obtain the edge detection image. Compared with the prior art, the image edge detection method provided by the embodiment of the present invention proposes a method for detecting image edges based on a first-order edge detection operator and a second-order edge detection operator at the same time. Moreover, the inventors have proved through multiple experiments that after logical OR operation is performed on the first-order edge detection image and the second-order edge detection image, the noise in the edge detection image is reduced, thereby improving the anti-noise capability of the edge detection image.

Description

technical field [0001] The invention relates to the technical field of edge detection, in particular to an image edge detection method and device. Background technique [0002] In the process of intelligent human-computer interaction and research on computer image edge detection, edge detection is the main feature of the image, and edge detection technology has become an important basis for image analysis such as image segmentation, target area recognition and area shape extraction. So far, edge detection technology has played an increasingly important role in the fields of scientific research, industrial production, military technology and health, and people have paid more and more attention to the research on edge detection technology. [0003] The edge refers to the collection of pixels with step-change or roof-like changes in the pixel gray level around the image, which exists between the target and the background, the target and the target, the region and the region, an...

AI Technical Summary

Problems solved by technology

However, in the actual image edge detection, due to the interference of projection, distortion and noise in the image, the effect of image edge detection using traditional differential edge detection operators is not ideal.

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