STM三维图象处理在微机上的实现

Three Dimensional STM Images Processing Program Based on a Microcomputer

本文介绍了可在微机上运行的扫描隧道显微镜三维图象处理程序。程序运用平移、比例、旋转、透视等几何变换将样品表面形貌以适当的位置、大小和角度显示在二维屏幕上,经消隐和明暗处理加强图象的立体感、真实感和清晰度,通过颜色模型转换将图象以灰度或混合过渡颜色绘制在高分辨显示终端上,实现 STM 数据的三维立体显示,进一步加强仪器的数据处理和显示功能。

This paper describes a program based on an IBM PC/AT or IBM 386 microcomput- er for three-dimensional representation of scanning tunneling microscopy(STM)images developed in our laboratory.The STM topographic images can be displayed on a high reso- lution graphics monitor both in color with different color lookup tables,which can be chos- en interactively,and in gray scale.The surface is rotated and then projected onto aviewing plane.This makes it possible to view the surfaces from different points of view.Light soures illuminate the surface to get shading which can be combined with perspective and hidden surface removal.The use of the three-dimensional image processing is of great help to get satisfying results with scanning tunneling microscopy and atomic force microscopy.