EIGENVALUE ANALYSIS OF COMPASS GRADIENT EDGE OPERATORS IN FOURIER DOMAIN
Rae‐Hong Park, Woo Young Choi · Journal of Circuits Systems and Computers · 1992
In this letter, we present a simple eigenvalue computation method of a transform matrix H introduced in a Fourier domain interpretation of the compass gradient edge operators.1 We derive the interrelation of three compass gradient edge operators in the spatial domain by explaining their eigenvalue structure in the transformed domain.