litSnn
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Name
litSnn - texture measure, combination of lit and snn
Syntax
litSnn <inimage> <outimage> <dp> [<dx> [<dy>]]
Description
Combination of lit - local information transform -
and snn - symmetric nearest neighbour. Only those
pixels selected by the snn filter are included in
the counting of pixels within the pixel value
interval [centerpixel-dp..centerpixel+dp]. The
output pixel value is the number of such pixels
within the window. Uses a rectangular processing
window of size dx * dy.
dp is the delta pixel value.
dx has default value 3, dy has default value dx.
See also
lit(1), snn(1)
Restrictions
inimage must have bands with pixel type unsigned byte.
Even values of dx and dy are increased by one.
Author
Tor Lønnestad, BLAB, Ifi, UiO
Examples
snn mona.img monals.img 10
snn mona.img monals.img 10 5
snn mona.img monals.img 10 5 7
Id
$Id: litSnn.c,v 1.23 1997/01/10 19:42:34 svein Exp $