Image Color Correction And Denoising Methods For Engineering Scanner Software

Engineering scanner has made a wide use in printing, scientific research and medical treatment field, etc. This research comes from the designing and development of engineering scanner of Highdig Company of Xidian University. The application software of the scanner is mainly depended on the function of image"input"and processing by third party image processing software, we try to change this situation for better serving this system, then design and develop its own upper software, and focus on image color correction and denoising methods during the system.This paper first introduces the hardware and software structure of scanner system and basic principles of image digitalization processing. Secondly it detailed introduces scanning image color correction method, and supplies the designing of integrative correction arithmetic, and then a method of image color deflection correction is presented and implemented. Then it introduces basic methods of image quality evaluation and analyzes the noises during the scanner system, and briefly introduces general image denoising methods. At last, through the detailed discussion of image denoising methods, we educe the math's theory of wavelet image-denoising, and with emphases discuss the realization methods of wavelet denoising.Eventually an image-denoising method that fits to the software system of engineering scanner is presented.