A luminance- and contrast-invariant edge-similarity measure.

Kumar, Saravana; Ong, Sim Heng; Ranganath, Surendra; Chew, Fook Tim · IEEE Trans Pattern Anal Mach Intell · 2006

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Abstract

A novel similarity measure for edge-detection that is robust to varying luminance and contrast is presented. It incorporates a regularization term and employs directional FIR edge filters with hyperbolic tangent profiles to ensure improved noise performance and edge localization compared to classical methods.

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