196 lines
5.3 KiB
Groff
196 lines
5.3 KiB
Groff
.\"
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.\" Copyright (c) 1990-1997 Sam Leffler
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.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
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.\"
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.\" Permission to use, copy, modify, distribute, and sell this software and
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.\" its documentation for any purpose is hereby granted without fee, provided
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.\" that (i) the above copyright notices and this permission notice appear in
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.\" all copies of the software and related documentation, and (ii) the names of
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.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
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.\" publicity relating to the software without the specific, prior written
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.\" permission of Sam Leffler and Silicon Graphics.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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.\"
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.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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.\" OF THIS SOFTWARE.
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.\"
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.if n .po 0
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.TH RAW2TIFF 1 "November 2, 2005" "libtiff"
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.SH NAME
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raw2tiff \- create a
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.SM TIFF
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file from a raw data
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.SH SYNOPSIS
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.B raw2tiff
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[
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.I options
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]
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.I input.raw
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.I output.tif
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.SH DESCRIPTION
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.I raw2tiff
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converts a raw byte sequence into
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.SM TIFF.
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By default, the
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.SM TIFF
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image is created with data samples packed (\c
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.IR PlanarConfiguration =1),
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compressed with the PackBits algorithm (\c
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.IR Compression =32773),
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and with each strip no more than 8 kilobytes.
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These characteristics can overridden, or explicitly specified
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with the options described below.
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.SH OPTIONS
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.TP
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.BI \-H " number"
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size of input image file header in bytes (0 by default). This amount of data
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just will be skipped from the start of file while reading.
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.TP
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.BI \-w " number"
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width of input image in pixels (can be guessed, see
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.SM
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.B "GUESSING THE IMAGE GEOMETRY"
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below).
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.TP
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.BI \-l " number"
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length of input image in lines (can be guessed, see
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.SM
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.B "GUESSING THE IMAGE GEOMETRY"
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below).
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.TP
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.BI \-b " number"
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number of bands in input image (1 by default).
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.TP
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.BI \-d " data_type"
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type of samples in input image, where
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.I data_type
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may be:
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.ta \w'\fBdouble \fR'u
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.br
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.B byte\t
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8-bit unsigned integer (default),
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.br
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.B short\t
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16-bit unsigned integer,
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.br
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.B long\t
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32-bit unsigned integer,
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.br
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.B sbyte\t
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8-bit signed integer,
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.br
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.B sshort\t
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16-bit signed integer,
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.br
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.B slong\t
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32-bit signed integer,
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.br
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.B float\t
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32-bit IEEE floating point,
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.br
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.B double\t
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64-bit IEEE floating point.
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.TP
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.BI \-i " config"
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type of samples interleaving in input image, where
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.I config
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may be:
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.ta \w'\fBpixel \fR'u
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.br
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.B pixel\t
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pixel interleaved data (default),
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.br
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.B band\t
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band interleaved data.
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.TP
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.BI \-p " photo"
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photometric interpretation (color space) of the input image, where
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.I photo
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may be:
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.ta \w'\fBminiswhite \fR'u
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.br
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.B miniswhite\t
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white color represented with 0 value,
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.br
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.B minisblack\t
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black color represented with 0 value (default),
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.br
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.B rgb\t
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image has RGB color model,
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.br
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.B cmyk\t
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image has CMYK (separated) color model,
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.br
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.B ycbcr\t
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image has YCbCr color model,
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.br
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.B cielab\t
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image has CIE L*a*b color model,
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.br
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.B icclab\t
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image has ICC L*a*b color model,
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.br
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.B itulab\t
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image has ITU L*a*b color model.
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.TP
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.B \-s
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swap bytes fetched from the input file.
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.TP
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.B \-L
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input data has LSB2MSB bit order (default).
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.TP
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.B \-M
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input data has MSB2LSB bit order.
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.TP
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.B \-c
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Specify a compression scheme to use when writing image data:
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.B "\-c none"
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for no compression,
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.B "\-c packbits"
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for the PackBits compression algorithm (the default),
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.B "\-c jpeg"
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for the baseline JPEG compression algorithm,
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.B "\-c zip"
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for the Deflate compression algorithm,
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and
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.B "\-c lzw"
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for Lempel-Ziv & Welch.
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.TP
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.BI \-r " number"
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Write data with a specified number of rows per strip;
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by default the number of rows/strip is selected so that each strip
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is approximately 8 kilobytes.
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.SH GUESSING THE IMAGE GEOMETRY
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.I raw2tiff
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can guess image width and height in case one or both of these parameters are
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not specified. If you omit one of those parameters, the complementary one will
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be calculated based on the file size (taking into account header size, number
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of bands and data type). If you omit both parameters, the statistical approach
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will be used. Utility will compute correlation coefficient between two lines
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at the image center using several appropriate line sizes and the highest
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absolute value of the coefficient will indicate the right line size. That is
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why you should be cautious with the very large images, because guessing
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process may take a while (depending on your system performance). Of course, the
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utility can't guess the header size, number of bands and data type, so it
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should be specified manually. If you don't know anything about your image,
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just try with the several combinations of those options.
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.P
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There is no magic, it is just a mathematical statistics, so it can be wrong
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in some cases. But for most ordinary images guessing method will work fine.
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.SH "SEE ALSO"
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.BR pal2rgb (1),
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.BR tiffinfo (1),
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.BR tiffcp (1),
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.BR tiffmedian (1),
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.BR libtiff (3)
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.PP
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Libtiff library home page:
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.BR http://www.simplesystems.org/libtiff/
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