Woolz Image Processing  Version 1.7.0
Name
WlzSobel - a 3x3 Sobel edge detection filter.
Synopsis
WlzSobel [-o<output object file>] [-x] [-y] [-h]
           [<input object file>]
Options
-x no horizontal pass.
-y no vertical pass.
-o Output object file name.
-h Help - print help message
-v Verbose operation
By default the input object is read from the standard input and the output object is written to the standard output.
Description
Applies a 3X3 Sobel edge detection filter to the input Woolz object, which must be a WLZ_2D_DOMAINOBJ with integral (int, short or unsigned char) grey values.
Examples
# An example of using WlzSobel to detect only vertical edges.

WlzSobel -o outfile.wlz -x infile.wlz

# A simple example in which both horizontal and vertical edges
# are detected.

WlzSobel <infile.wlz >outfile.wlz
File
WlzSobel.c
See Also
WlzSobel(3)