如何删除图像区域以在matlab中留下周围空间 [英] How to remove a region of an image to leave the surrounding space in matlab

问题描述

因此，如果我有灰度图像_I，我需要从中删除region_R以留下周围的空间。

So if I have a grayscale image_I, I need to remove a region_R from it to leave the surrounding space.

到目前为止，我已经

region_R = image_I(regionStartPoint(1):regionStartPoint(1)+size_W(1)-1,...
                   regionStartPoint(2):regionStartPoint(2)+size_W(2)-1);

surroundingSpace = image_I - region_R

感谢您的帮助！

推荐答案

如果删除，您的意思是制作它为0或1，你可以简单地做如下：

If by removing, you mean making it to 0 or 1, than you can simply do as follows:

image_I(regionStartPoint(1):regionStartPoint(1)+size_W(1)-1,...
                   regionStartPoint(2):regionStartPoint(2)+size_W(2)-1) = 0

或者您可以为其分配NaN，

Or you can assign NaN to it,

image_I(regionStartPoint(1):regionStartPoint(1)+size_W(1)-1,...
                   regionStartPoint(2):regionStartPoint(2)+size_W(2)-1) = NaN

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