How do I get the value of C and ws in adaptive thresholding?

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ThankGod Alexander 2022-5-8

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编辑： DGM 2022-5-8

Hello everyone, I need help on how to get the value of C and ws in adaptive thresholidng by Guanglei Xiong

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Answer 1

DGM 2022-5-8

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https://ww2.mathworks.cn/matlabcentral/answers/1714565-how-do-i-get-the-value-of-c-and-ws-in-adaptive-thresholding#answer_959880

编辑：DGM 2022-5-8

You have to select them based on the image content and your own intent. Refer to the documentation:

https://homepages.inf.ed.ac.uk/rbf/HIPR2/adpthrsh.htm

https://www.mathworks.com/matlabcentral/fileexchange/8647-local-adaptive-thresholding?s_tid=prof_contriblnk

ws is the filter window size (pixels). It's just a scalar. The window size is square.

C is an offset parameter used to avoid thresholding noise in uniform regions where there is no object content within the filter window. It's a scalar in the range [0 1]. It's generally going to be a small value. Note that the examples in the documentation seem to describe numbers on a uint8 [0 255] scale instead of [0 1], as the given implementation uses.