Helderiv - Helix derivative filter in 2-D

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Helderiv - Helix derivative filter in 2-D

Helderiv < in.H helix=1 na=16 > out.H

Factors the laplacian operator. Applies helix derivative. Loops over n3

from history integer n1 , n2

from par logical helix =1 if 0, apply the gradient filter on the 1st axis

integer na =16 filter size (half the number of nonzero coefficients)

real eps =0.001 zero frequency shift on the laplacian

from history	integer	n1 , n2
from par	logical	helix =1	if 0, apply the gradient filter on the 1st axis
	integer	na =16	filter size (half the number of nonzero coefficients)
	real	eps =0.001	zero frequency shift on the laplacian

Modules: helicon.lop , helderiv.r90

Next: Helicon - Helix convolution Up: SERGEY'S MAIN PROGRAM DOCS Previous: Devector - create one

Stanford Exploration Project
4/27/2004