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author | mike <mike> | 1999-07-27 21:50:26 +0000 |
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committer | mike <mike> | 1999-07-27 21:50:26 +0000 |
commit | eee9461f2dad9f0d44b5e0444d9fc2079368cc87 (patch) | |
tree | 0d2948bd5610d1fa6b8124c344c4b409c820ec41 /man/thumbnail.1 | |
download | libtiff-eee9461f2dad9f0d44b5e0444d9fc2079368cc87.tar.gz |
Initial revision
Diffstat (limited to 'man/thumbnail.1')
-rw-r--r-- | man/thumbnail.1 | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/man/thumbnail.1 b/man/thumbnail.1 new file mode 100644 index 00000000..ab544676 --- /dev/null +++ b/man/thumbnail.1 @@ -0,0 +1,87 @@ +.\" $Header: /cvs/maptools/cvsroot/libtiff/man/thumbnail.1,v 1.1 1999-07-27 21:50:28 mike 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 "September 26, 1994" +.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" +.IR tiffdump (1), +.IR tiffgt (1), +.IR tiffinfo (1), +.IR libtiff (3) |