Optimally isotropic Laplacian operator

Citation
B. Kamgar-parsi et al., Optimally isotropic Laplacian operator, IEEE IM PR, 8(10), 1999, pp. 1467-1472
Citations number
11
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON IMAGE PROCESSING
ISSN journal
10577149 → ACNP
Volume
8
Issue
10
Year of publication
1999
Pages
1467 - 1472
Database
ISI
SICI code
1057-7149(199910)8:10<1467:OILO>2.0.ZU;2-W
Abstract
Laplacian operators used in the literature for digital image processing are not rotationally invariant. We examine the anisotropy of a x 3 Laplacian o perators for images quantized in square pixels, and find the operator which has the minimum overall anisotropy.