im2bw finding an alternative
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Hey everybody, I try to find an alternative to im2bw(x,y).
Here's the code excerpt:
A1 = imread('filename.png'); A2 = im2bw(A1,0.5); %Make BW matrix (0=black, 1=white)
thanks for helping
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Geoff Hayes
2017년 9월 26일
Lisa - are you looking for an alternative because you don't have access to this function? I don't think it would be that difficult to come up with your own implementation of this function.
답변 (2개)
Eeshan Mitra
2017년 9월 29일
If you do not have access to the Image Processing Toolbox as Geoff commented, you can manually threshold, as described in the following post:
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Image Analyst
2017년 9월 29일
To threshold at a level of one half, try this:
level = intmax(class(A1)) / 2;
BW = A1 > level; % Or can use < instead to get dark things.
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