image_scale.m

介绍了傅立叶变换的基本原理

function output = image_scale(input,lower,upper)
> USAGE : output = image_scale(input,lower,upper)
>
> input = image to be scaled
> lower,upper = new limits to impose on image
> output = newly-scaled image
>
> Adam Wilmer, 25-4-02

iu = max(max(input)); il = min(min(input));
output = ((upper-lower)*((input-il)/(iu-il)))+lower;