NAME
pfsoctavelum - Process luminance in pfs stream using Octave
SYNOPSIS
pfsoctavelum <octave_program>
DESCRIPTION
Use this command to execute a GNU Octave program on luminance channel
of each frame in the pfs stream. octave_program must be given in
quotation marks ("") and must not produce any output (it can output to
stderr, not to stdout). Color channels are scaled proportionaly to the
luminance channel. Luminance channel is represented by matrix Y.
Note: This command requires GNU Octave.
EXAMPLES
pfsinrgbe frames_%04d.hdr | pfsoctavelum "Y = conv2( Y, gaussian( 10,
1/5 )*gaussian( 10, 1/5 )’, ’same’ );" | pfsview
Blur the sequence of frames with gaussian blur and show the result with
pfsview.
BUGS
Please report bugs and comments to Rafal Mantiuk <mantiuk@mpi-
sb.mpg.de>.
pfsoctavelum(1)