一、引言利用计算机进行图象信号的数据处理,首先应把二维空间分布的图象信息变换成随时间变化的电信号,再经模数转换系统数字化由计算机采样。图象被转换成内存中的象素矩阵,对象素矩阵进行各种数学处理,最终可得到图象的数值结果及在图形CRT、绘图仪或可针控打印机上输出的图形结果。随着计算机功能的日益提高,高速模数转换系统的出现,计算机图象处理由于可实时地取到精确度高的数值结果及形象的图形结果而得到了愈来愈广泛地应用。然而,这样的图象处理系统往往需要高性能的计算机和高速度模数转换系统,因而价格 I. INTRODUCTION The use of computers for image signal data processing, the first two-dimensional spatial distribution of image information should be transformed into electrical signals over time, and then digitized by the digital conversion system by the computer sample. The image is converted into a matrix of pixels in memory and subjected to various mathematical operations on the matrix of pixels to yield the numerical results of the image and the resulting graphical output on a graphical CRT, plotter, or pinprintable printer. With the advent of computer functions and the advent of high-speed analog-to-digital conversion systems, computer image processing has been more and more widely used because of the high accuracy numerical results and graphical results obtained in real time. However, such image processing systems often require high-performance computers and high-speed analog-to-digital conversion systems, so the price