摘要
对于遥感影像的灰度值局限在某一狭窄范围内的数字图像，本文提出了一种基于线性拉伸的图像处理方法，针对图像的灰度均值（μ）及灰度方差（α），找出该图像的最适合的拉伸范围。
According to the image of a narrow gray level range, this paper introduces a method of linear grayscale extension to set up a proper range guided by the average value and variance of the image gray level, so as to make the image more sharp.
出处
《光电子技术与信息》
1998年第5期29-33,共5页
Optoelectronic Technology & Information
关键词
数字图像处理
遥感
灰度级
digital image processing, remote sensing, gray level
