morphOpen

Name

morphOpen - morphological grayscale open on an image.

Syntax

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

Description

morphOpen calculates the morphological operation open on the image inimage, with a structuring element given by struct_element (in combination with option -a or -b). The result is sent to the image spesified in outimage. The actual calculation is performed with the expression:

 outband = morphDilate(morphErode(inband))

Restrictions

Input images must be of the following types:

inimage: Unsigned byte.
struct_element: With option -a: Ascii characters (numbers) describing the structuring element. With option -b: BIFF image with pixel type signed short.

Options

-a struct_element: struct_element is an ascii file which contains the structuring element. See ascii2biff(1) for file format.
-b struct_element: struct_element is a BIFF image which contains the structuring 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

morphOpen ~blab/img/mona.img mona.img -a filter.txt morphOpen ~blab/img/mona.img mona.img -b filter.img

Id

$Id: morphOpen.c,v 1.20 1997/01/16 16:06:44 svein Exp $