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A Luminance- and Contrast-Invariant Edge-Similarity Measure
December 2006 (vol. 28 no. 12)
pp. 2042-2048
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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Index Terms:
Edge detection, filtering, projection angles, similarity measure.
Saravana Kumar, Sim Heng Ong, Surendra Ranganath, Fook Tim Chew, "A Luminance- and Contrast-Invariant Edge-Similarity Measure," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 28, no. 12, pp. 2042-2048, Dec. 2006, doi:10.1109/TPAMI.2006.236
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