Woolz Image Processing  Version 1.7.0
Name
WlzLaplacian - Applies a Laplacian edge enhancement filter.
Synopsis
WlzLaplacian [-o<output object file>] [-s kernel size]
           [-a] [-h] [<input object file>]
Options
-a absolute value of the convolution.
-s convolution kernel size (3, 5 or 7), default 3.
-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 -a flag is set the resulting pixel values will be signed (for int or short pixel values) or centred around 128 for WlzUByte pixel values.
Description
Applies an edge enhancement 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 WlzLaplacian with the default 3X3 kernel:

WlzLaplacian -o outfile.wlz infile.wlz
File
WlzLaplacian.c
See Also
WlzGauss(1) WlzRsvFilterObj(1) WlzGreyCrossing(1) WlzLaplacian(3)