Research On The Key Technology Of RIP For Large-Scale Color Inkjet Plotter

The key technology of developing RIP software for large-scale color InkJet plotter is studied in this paper. The method to develop RIP in the mode of printer driver is analyzed. The printer subsystem in Windows and run principle of printer driver is discussed, then the development under DDK(driver development kits) is also studied and the difficulty in this mode is analyzed. Considering the integrated design of plotter we decide to develop RIP in the mode of application programming. Image processing technology is a kernel module of RIP. This paper deals with image transform, image scaling, color adjustment, color separation and so on. Through studying the general interpolation methods, such as biliner and bicubic, we present the three points interpolation arithmetic which can be used to achieve the image scaling function. The interpolation effect of this arithmetic is better than that of biliner, and it cost less time than bicubic. We adopt the Bezier curve fitting and general conic curve fitting to adjust the image color and use the three dimensional lookup table technology to implement the color separation. Finally this paper compares the general data transfer modes and implements the printing data transfer in Socket. The research and practice of this thesis possess certain practical significance and referential value in promoting the development of RIP technology in our country.