Name: WlzGreyCrossing - detects grey value crossings.

Synopsis

WlzGreyCrossing [-o<output object file>] [-c crossing value]
           [-h] [<input object file>]

Options

-c	grey-crossing value, default 0.
-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. Unless the

Description: Computes a grey value crossing image from a 2D domain object with integral grey values.

Examples

# An example using WlzLaplacian(1) and WlzGreyCrossing for edge
# detection

WlzPixConvert 1 <infile.wlz | \
WlzLaplacian | \
WlzGreyCrossing -c0 | \
WlzThreshold -H -v1 >outfile.wlz

File: WlzGreyCrossing.c

See Also: WlzCannyDeriche(1) WlzGreyGradient(1) WlzGreyCrossing(3)