期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2005
卷号：XXXVI-2/W25
出版社：Copernicus Publications
摘要：For the limits of computer EMS memory and CPU speed,people ofen show or operate a large amount of image data such as remote sensing in computer by incising the data bulk when reading them from hard disk,It can quicken the speed when opening a file in seeing, but when we zoom or rotate the image showing on screen,it look so slowly for not all data is in memory and data exchanging exist between hard dist and memory. In the past several years, performance of computer hardware has being improved higher and higher ,computer physics and virtual memory ,for SUN Blade2000 as examble,reach to 8 GB maximum , so it is not difficult reading all data from a about 1.5G amounts of data file. But there would have many disadvantages if such large data in memory is not dealt with properly. This article describe some advantages of reading all data into memory when opening the remote sensing image file, and some ways to show, to zoom and to operate the undivided data without taking up additional memory of the computer.In this article we use motif to deal with a user interface for graphical
关键词：Image Processing; ; Motif; Sun Blade2000; Scrolledwindows; Scrollbar ; displaying large amounts of image data
