.\" $Id: ppm2tiff.1,v 1.5 2006-03-01 11:20:33 dron Exp $

.\"

.\" Copyright (c) 1991-1997 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, 

.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 

.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  

.\" 

.\" 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,

.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 

.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 

.\" OF THIS SOFTWARE.

.\"

.if n .po 0

.TH PPM2TIFF 1 "March 1, 2006" "libtiff"

.SH NAME

ppm2tiff \- create a

.SM TIFF

file from 

.SM PPM, PGM

and

.SM PBM

image files

.SH SYNOPSIS

.B ppm2tiff

[

.I options

] [

.I input.ppm

]

.I output.tif

.SH DESCRIPTION

.I ppm2tiff

converts a file in the 

.SM PPM, PGM

and

.SM PBM

image formats to

.SM TIFF.

By default, the

.SM TIFF

image is created with data samples packed (\c

.IR PlanarConfiguration =1),

compressed with the Packbits algorithm (\c

.IR Compression =32773),

and with each strip no more than 8 kilobytes. These characteristics can be

overridden, or explicitly specified with the options described below

.PP

If the

.SM PPM

file contains greyscale data, then the

.I PhotometricInterpretation

tag is set to 1 (min-is-black), otherwise it is set to 2 (RGB).

.PP

If no

.SM PPM

file is specified on the command line,

.I ppm2tiff

will read from the standard input.

.SH OPTIONS

.TP

.B \-c

Specify a compression scheme to use when writing image data:

.B none 

for no compression,

.B packbits

for PackBits compression (will be used by default),

.B lzw

for Lempel-Ziv & Welch compression,

.B jpeg

for baseline JPEG compression,

.B zip

for Deflate compression,

.B g3

for CCITT Group 3 (T.4) compression,

and

.B g4

for CCITT Group 4 (T.6) compression.

.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.

.TP

.B \-R

Mark the resultant image to have the specified X and Y resolution (in

dots/inch).

.SH "SEE ALSO"

.BR tiffinfo (1),

.BR tiffcp (1),

.BR tiffmedian (1),

.BR libtiff (3)

.PP

Libtiff library home page:

.BR http://www.remotesensing.org/libtiff/