The scale in imshow function

6 次查看（过去 30 天）

Yasmin Tamimi 2016-11-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/310118-the-scale-in-imshow-function

评论： Yasmin Tamimi 2016-11-1

Dear All,

When we write imshow(a,[]) the [] scales the whole image by how much. I tried to divide by 255 but it didn't give the same results as putting the []!

Regards,

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Image Analyst 2016-11-1

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/310118-the-scale-in-imshow-function#answer_241539

Doing [] takes the min of the image and puts it at 0 (black) and the max of the image and puts it at 255 (white). So let's say your image went from 60 to 130. Using [] would map 60 down to 0, and map 130 up to 255, and everything else would be linearly scaled in between.