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What is the reasoning behind dividing sigma by 2.5 when performing edge validation? #31

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MrZander opened this issue Oct 17, 2022 · 0 comments
Open

What is the reasoning behind dividing sigma by 2.5 when performing edge validation? #31

MrZander opened this issue Oct 17, 2022 · 0 comments

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@MrZander
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The paper states that ED works best with sigma = 1, which I can see is what is used.
But, why then does the code divide the original sigma by 2.5 and re-smooth the image?

ED_Lib/EDPF.cpp

Line 20 in 6ea56f1

sigma /= 2.5;

I don't see any rational for this in the paper, am I missing something? Does this produce better validation results?
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@MrZander