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==Anisotropy is too abstract==
The direction of gradient varies in the neighborhood of the pixel at the curved edge. Is it better to talk about curvature instead of anisotropy? The formula for curvature can be easily found from the distribution of gradient. See for example Documentation tab at [http://outliner.codeplex.com/documentation Outliner project] --[[User:Wladik Derevianko|Wladik Derevianko]] ([[User talk:Wladik Derevianko|talk]]) 21:32, 2 May 2011 (UTC)
:Curvature is only one aspect of anisotropy. If there are variations in the direction/orientation of the gradient it may also be related to, e.g., presens of noise or of two or more lines/edges in the neighborhood. --[[User:KYN|KYN]] ([[User talk:KYN|talk]]) 07:32, 3 May 2011 (UTC)
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