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)