The Image Predisposal Systems Applied In The Jacquard Field

The image predisposal systems applied in the jacquard field is an important component for jacquard CAD. Traditional Jacquard CAD system has reached a very high level in jacquard weaving process, but the image preprocessing couldn't meet the ever-increasing customer demands. In order to strengthen the image processing capabilities, and improve the efficiency of the design, the image predisposal systems applied in the jacquard field is designed in this subject. This system provides a strong image processing and management functions for users with a great convenience.This paper describes the image predisposal system's structure and the functions of the modules, including graphic and images management module and graphic and images editing module. Detailed contributions are as follows:a) Dividing the system into two modules, graphic and images management module and graphic and images editing module. The system of graphics and image management and editing functions are separated from each other, which make users design friendly.b) In the graphic and images management module, according to the features that the vector graphics can be divides into simple entities and composite entities, a vector editing system using Object-Oriented Composite Pattern is designed, which is used to manage the vector graphics. Introduce the function of layer, respectively manage vectors and bitmaps, allowing arbitrary adding, deleting, moving, stacking layers and some basic settings of properties. The two layers of vectors and bitmaps can be mutual conversed. These functions greatly facilitate the image managing.c) In the graphic and images editing module, introduce the function of bitmap to vector, according to the features of jacquard images, present a more effective jacquard bitmap vectorization algorithm, the function of jacquard bitmap to vector map facilitate the management and editing. Using mathematical morphology transform in the image processing methods, such as expansion, corrosion, opened transform, closed transform and improve the algorithm to framework extract, which could get some artistic effect. Advancing the improved interpolation algorithm, a better solution to enlarge images commonly encountered in the distortion.