.TH "pfsoctavergb" 1
.SH NAME
pfsoctavergb \- Process red, green and blue channels in pfs stream using Octave
.SH SYNOPSIS
.B pfsoctavergb <octave_program>
.SH DESCRIPTION
Use this command to execute a GNU Octave program on red, green and blue
channels of each frame in the pfs stream. \fIoctave_program\fR must be
given in quotation marks ("") and must not produce any output (it can
output to stderr, not to stdout). Red, green and blue color channels
are available in \fIoctave_program\fR as \fBR\fR, \fBG\fR and \fBB\fR
matrices.  
.PP
Note: This command requires GNU Octave.
.SH EXAMPLES
.TP
pfsinrgbe frames_%04d.hdr | pfsoctavergb "R = R.^2; G = G.^2; B = B.^2;" | pfsview
.PP
Expand the dynamic range of a sequence of frames and show the result
with pfsview.
.SH BUGS
Please report bugs and comments to Rafal Mantiuk
<mantiuk@mpi-sb.mpg.de>.