vquickmorph3d(1Vi)														vquickmorph3d(1Vi)

NAME

       vquickmorph3d - apply a quick 3D morphological filter to a binary image

SYNOPSIS

       vquickmorph3d [-option ...] [infile] [outfile]

DESCRIPTION

       vquickmorph3d  applies a 3D morphological filter to an image by thresholding a distance transform.  Each input image is filtered to produce
       a corresponding output image.

       This program emulates a "true" morphological filter by thresholding a 3D distance transform. It can only  emulate  filtering  by  a  sphere
       shaped structuring element. It is much faster than the original morphological filtering. It produces slightly different results.

       The input images must be binary images of type VBit. The output images will also be binary.

COMMAND LINE OPTIONS

       vquickmorph3d accepts the following options:

       -help	      Prints a message describing options.

       -in infile     Specifies the Vista data file containing the input images.

       -out outfile   Specifies where to write the output images as a Vista data file.

       -radius diameter
		      Specifies the radius of a sphere shaped structuring element.  Default: 6.

       -op op	      Specifies the operation as one of the following:

			dilate	  dilation
			erode	  ersion
			open	  opening (erosion followed by dilation)
			close	  closing (dilation followed by erosion)

       Input and output files can be specified on the command line or allowed to default to the standard input and output streams.

LITERATURE

       For  an	excellent  tutorial on image morphology, see Haralick, R.M, S.R. Sternberg, and X. Zhuang, "Image analysis using mathematical mor-
       phology," IEEE Trans. PAMI, vol. PAMI-9, No. 4, July 1987, pp. 532-550.	Or see Maragos, P. and R. Shaffer, "Morphological systems for mul-
       tidimensional Signal Processing", Proc. IEEE, vol. 78, no. 4, April 1990.

SEE ALSO

       vbinmorph3d(1Vi), VImage(3Vi), Vista(7Vi)

AUTHOR

       Gabriele Lohmann <lohmann@cns.mpg.de>

Vista Version 2.0						  15 Februar 1994						vquickmorph3d(1Vi)