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MORPHDILATE

Section: User Commands (1)
Updated: 16 Mar 1998
Index

NAME

morphDilate - morphological grayscale dilate on an image.

SYNTAX

morphDilate <-a | -b> <struct_element> <inimage> <outimage>

DESCRIPTION

morphDilatecalculates the morphological operationdilate on the image inimage,with a structuringelement given by struct_element(in combination withoption -aor -b).The result is sent to the image spesifiedin outimage.The actual calculation is performed with theexpression:

outband(x,y) = max[inband(x+i,y+j)+B(i,j)]

with i and j are inside the structuring element B and(0,0) as the center pixel of B.

RESTRICTIONS

Input images must be of the following types:

inimage

Unsigned byte.

struct_element

With option -a:Ascii characters (numbers) describing thestructuring element. With option -b:BIFF image with pixeltype signed short.

OPTIONS

-a struct_element

struct_elementis an ascii file which contains thestructuring element. See ascii2biff(1) for file format.

-b struct_element

struct_elementis a BIFF image which contains thestructuring element.

RETURN VALUE

0 : OK
1 : Usage message
2 : Illegal number of arguments
3 : No structuring element

AUTHOR

Martin Torpe Lie, BLAB, Ifi, UiO

EXAMPLES

morphDilate ~blab/img/mona.img mona.img -a filter.txtmorphDilate ~blab/img/mona.img mona.img -b filter.img

ID

$Id: morphDilate.c,v 1.26 1997/03/18 12:09:12 svein Exp $

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