how can use otsu's method as a local thresholding?

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jack nn
jack nn 2015-10-30
评论： Image Analyst 2018-9-26
hi all
how can use otsu's method as a local thresholding?
and which differences between these codes?
I=graythresh(Img)
and
I=multithresh(Img)
when I use each of this code, the result is same. I can not understand the diffrences between graythresh and multithresh:(.
thanks

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回答（2 个）

Image Analyst
Image Analyst 2015-10-30
I use a local Otsu in this locally adaptive document background correction demo, attached.
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Shel
Shel 2018-9-26
Thanks, but can you please tell me what is the function fun = @(x) LocalOtsu(x)? as it is not recognized by the program.Thank you
Image Analyst
Image Analyst 2018-9-26
That function is included in the file I attached. How could it not be recognized? It's right in there. Did you only copy part of it? Or delete it by accident? Click on document_threshold.m above and scroll to the bottom and you'll see it.

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Shel
Shel 2018-9-17
Hello, Did you find the answer to your question? if so, can you please share it with me?

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