The Research Of Key Technique In The Cutting Of Non-metallic Gasket Based On Image Processing

Recent years, CAD( computer aided design) is one of the techniques which develop very fast in the field of engineering. This paper develops a CAD software which aim at advancing the efficiency of the cutting system. The input part of CAD software of engraving system is always the problem. Faced with the character of Non-metallic gasket, this paper introduce the technique of digital image processing into the input part of software of the cutting system, the technique enhance the automation of the cutting system and convenience of the operation.Techniques of image segmentation, edge extraction, edge searching are introduced into the processing of the gasket image to get the edges information. Through the techniques of curve fit and image matching based on gasket database to get the reconfiguration of gasket image, it simples the input of gasket graphics.This software establishes a complete gasket database which contains most of common military equipment gaskets and provides several methods for searching.A hand drawing mode based on human-computer interaction is designed to deal with the special environment in which the image of gasket is too hard to get. Some functions which help user to draw graphics are added too, for example, the modifying of the image contrast. The database also save some finished graphics as the draft of drawing, providing more convenience to users.This paper makes a lot of experiments on the algorithm. The results show that taking use of the digital image processing and graphic reconfiguration technique together can enhance the automation of system input effectively.