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-.\" $Id: thumbnail.1,v 1.2 2005-11-02 11:07:19 dron Exp $
-.\"
-.\" Copyright (c) 1994-1997 Sam Leffler
-.\" Copyright (c) 1994-1997 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 THUMBNAIL 1 "November 2, 2005" "libtiff"
-.SH NAME
-thumbnail \- create a
-.SM TIFF
-file with thumbnail images
-.SH SYNOPSIS
-.B thumbnail
-[
-.I options
-]
-.I input.tif
-.I output.tif
-.SH DESCRIPTION
-.I thumbnail
-is a program written to show how one might use the
-SubIFD tag (#330) to store thumbnail images.
-.I thumbnail
-copies a
-.SM TIFF
-Class F facsimile file to the output file
-and for each image an 8-bit greyscale
-.IR "thumbnail sketch" .
-The output file contains the thumbnail image with the associated
-full-resolution page linked below with the SubIFD tag.
-.PP
-By default, thumbnail images are 216 pixels wide by 274 pixels high.
-Pixels are calculated by sampling and filtering the input image
-with each pixel value passed through a contrast curve.
-.SH OPTIONS
-.TP
-.B \-w
-Specify the width of thumbnail images in pixels.
-.TP
-.B \-h
-Specify the height of thumbnail images in pixels.
-.TP
-.B \-c
-Specify a contrast curve to apply in generating the thumbnail images.
-By default pixels values are passed through a linear contrast curve
-that simply maps the pixel value ranges.
-Alternative curves are:
-.B exp50
-for a 50% exponential curve,
-.B exp60
-for a 60% exponential curve,
-.B exp70
-for a 70% exponential curve,
-.B exp80
-for a 80% exponential curve,
-.B exp90
-for a 90% exponential curve,
-.B exp
-for a pure exponential curve,
-.B linear
-for a linear curve.
-.SH BUGS
-There are no options to control the format of the saved thumbnail images.
-.SH "SEE ALSO"
-.BR tiffdump (1),
-.BR tiffgt (1),
-.BR tiffinfo (1),
-.BR libtiff (3)
-.PP
-Libtiff library home page:
-.BR http://www.remotesensing.org/libtiff/