本文介绍了如何规范化图像？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
如果我有一系列像素，范围从-500到+1000，我如何规范化同一渐变上的所有像素，使它们落在特定范围之间，比如0到255？
If I have a series of pixels, which range from say -500 to +1000, how would I normalize all the pixels on the same gradient so that they fall between a specific range, say 0 and 255?
推荐答案
像这样的伪代码会将值从一个范围线性扩展到另一个范围
Some pseudocode like this would scale values linearly from one range to another
oldmin=-500
oldmax=1000
oldrange=oldmax-oldmin;
newmin=0
newmax=255;
newrange=newmax-newmin;
foreach(oldvalue)
{
//where in the old scale is this value (0...1)
scale=(oldvalue-oldmin)/oldrange;
//place this scale in the new range
newvalue=(newrange*scale)+newmin
}
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