gpiv_lowpass(1) Image low-pass filtering program.


gpiv_highpass [-h | --help] [-p | --print] [-t N | --threshold N] [-v | --version] [filename] < stdin > stdout


gpiv_highpass High-pass filter for images.

The parameters read from the configuration resources (containing the key GPIV_IMGPROC) may be overruled by the command line options, as explained below.


-h | --help On-line help
-t N | --threshold N Threshold value
-v | --version Print version information on standard output, then exit successfully.
filename Input image filename. Overrides stdin and stdout with the full filename of the image. Output will be written to filename.png. Parameters are stored in filename.par and may be used for future use by including them in ./gpivrc. If stdin and stdout are used, the input is expected to be a PNG formatted image.


Gerber Van der Graaf