From 9491825ddff7a294d1f49061bae7044e426aeb2e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Fri, 6 Nov 2015 05:38:49 +0100 Subject: Imported Upstream version 1.8.3 --- tiff/man/tiffmedian.1 | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100755 tiff/man/tiffmedian.1 (limited to 'tiff/man/tiffmedian.1') diff --git a/tiff/man/tiffmedian.1 b/tiff/man/tiffmedian.1 new file mode 100755 index 0000000..c584b97 --- /dev/null +++ b/tiff/man/tiffmedian.1 @@ -0,0 +1,112 @@ +.\" $Id: tiffmedian.1,v 1.3 2005-11-02 11:07:19 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, +.\" 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 TIFFMEDIAN 1 "November 2, 2005" "libtiff" +.SH NAME +tiffmedian \- apply the median cut algorithm to data in a +.SM TIFF +file +.SH SYNOPSIS +.B tiffmedian +[ +.I options +] +.I input.tif +.I output.tif +.SH DESCRIPTION +.I tiffmedian +applies the median cut algorithm to an +.SM RGB +image in +.I input.tif +to generate a palette image that is written to +.IR output.tif . +The generated colormap has, by default, 256 entries. +The image data is quantized by mapping each +pixel to the closest color values in the colormap. +.SH OPTIONS +.TP +.B \-c +Specify the compression to use for data written to the output file: +.B none +for no compression, +.B packbits +for PackBits compression, +.B lzw +for Lempel-Ziv & Welch compression, +and +.B zip +for Deflate compression. +By default +.I tiffmedian +will compress data according to the value of the +.I Compression +tag found in the source file. +.IP +.SM LZW +compression can be specified together with a +.I predictor +value. +A predictor value of 2 causes +each scanline of the output image to undergo horizontal +differencing before it is encoded; a value +of 1 forces each scanline to be encoded without differencing. +LZW-specific options are specified by appending a ``:''-separated +list to the ``lzw'' option; e.g. +.B "\-c lzw:2" +for +.SM LZW +compression with horizontal differencing. +.TP +.B \-C +Specify the number of entries to use in the generated colormap. +By default all 256 entries/colors are used. +.TP +.B \-f +Apply Floyd-Steinberg dithering before selecting a colormap entry. +.TP +.B \-r +Specify the number of rows (scanlines) in each strip of data +written to the output file. +By default, +.I tiffmedian +attempts to set the rows/strip +that no more than 8 kilobytes of data appear in a strip. +.SH NOTES +This program is derived from Paul Heckbert's +.I median +program. +.SH "SEE ALSO" +.BR pal2rgb (1), +.BR tiffinfo (1), +.BR tiffcp (1), +.BR tiffcmp (1), +.BR libtiff (3TIFF) +.PP +.BR "Color Image Quantization for Frame Buffer Display", +Paul Heckbert, SIGGRAPH proceedings, 1982, pp. 297-307. +.PP +Libtiff library home page: +.BR http://www.remotesensing.org/libtiff/ -- cgit v1.2.3