.\" $Id: ras2tiff.1,v 1.2 2005-09-20 10:14:29 dron Exp $
.\"
.\" Copyright (c) 1990-1997 Sam Leffler
.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
.\"
.\" Permission to use, copy, modify, distribute, and sell this software and 
.\" its documentation for any purpose is hereby granted without fee, provided
.\" that (i) the above copyright notices and this permission notice appear in
.\" all copies of the software and related documentation, and (ii) the names of
.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
.\" publicity relating to the software without the specific, prior written
.\" permission of Sam Leffler and Silicon Graphics.
.\" 
.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
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.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
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.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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.\" OF THIS SOFTWARE.
.\"
.if n .po 0
.TH RAS2TIFF 1 "September 20, 2005" "ras2tiff"
.SH NAME
ras2tiff \- create a
.SM TIFF
file from a Sun rasterfile
.SH SYNOPSIS
.B ras2tiff
[
.I options
]
.I input.ras
.I output.tif
.SH DESCRIPTION
.I ras2tiff
converts a file in the Sun rasterfile format to
.SM TIFF.
By default, the
.SM TIFF
image is created with data samples packed (\c
.IR PlanarConfiguration =1),
compressed with the Lempel-Ziv & Welch algorithm (\c
.IR Compression =5),
and with each strip no more than 8 kilobytes.
These characteristics can overridden, or explicitly specified
with the options described below.
.PP
Any colormap information in the rasterfile is carried over to the
.SM TIFF
file by including a
.I Colormap
tag in the output file.
If the rasterfile has a colormap, the
.I PhotometricInterpretation
tag is set to 3 (palette);
otherwise it is set to 2 (RGB) if the depth
is 24 or 1 (min-is-black) if the depth is not 24.
.SH OPTIONS
.TP
.B \-c
Specify a compression scheme to use when writing image data:
.B "\-c none"
for no compression,
.B "-c packbits"
for the PackBits compression algorithm,
.B "-c jpeg"
for the baseline JPEG compression algorithm,
.B "-c zip
for the Deflate compression algorithm,
and
.B "\-c lzw"
for Lempel-Ziv & Welch (the default).
.TP
.B \-r
Write data with a specified number of rows per strip;
by default the number of rows/strip is selected so that each strip
is approximately 8 kilobytes.
.SH BUGS
Does not handle all possible rasterfiles.
In particular, 
.I ras2tiff
does not handle run-length encoded images.
.SH "SEE ALSO"
.IR pal2rgb (1),
.IR tiffinfo (1),
.IR tiffcp (1),
.IR tiffmedian (1),
.IR libtiff (3)