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RAW2TIFF(1)                                                        RAW2TIFF(1)



NAME
       raw2tiff - create a TIFF file from a raw data

SYNOPSIS
       raw2tiff [ options ] input.raw output.tif

DESCRIPTION
       raw2tiff  converts  a  raw  byte  sequence  into TIFF.  By default, the TIFF image is created with data samples
       packed (PlanarConfiguration=1), compressed with the PackBits algorithm (Compression=32773), and with each strip
       no  more  than  8  kilobytes.   These  characteristics can overridden, or explicitly specified with the options
       described below.

OPTIONS
       -H number
              size of input image file header in bytes (0 by default). This amount of data just will be  skipped  from
              the start of file while reading.

       -w number
              width of input image in pixels (can be guessed, see GUESSING THE IMAGE GEOMETRY below).

       -l number
              length of input image in lines (can be guessed, see GUESSING THE IMAGE GEOMETRY below).

       -b number
              number of bands in input image (1 by default).

       -d data_type
              type of samples in input image, where data_type may be:
              byte     8-bit unsigned integer (default),
              short    16-bit unsigned integer,
              long     32-bit unsigned integer,
              sbyte    8-bit signed integer,
              sshort   16-bit signed integer,
              slong    32-bit signed integer,
              float    32-bit IEEE floating point,
              double   64-bit IEEE floating point.

       -i config
              type of samples interleaving in input image, where config may be:
              pixel   pixel interleaved data (default),
              band    band interleaved data.

       -p photo
              photometric interpretation (color space) of the input image, where photo may be:
              miniswhite   white color represented with 0 value,
              minisblack   black color represented with 0 value (default),
              rgb          image has RGB color model,
              cmyk         image has CMYK (separated) color model,
              ycbcr        image has YCbCr color model,
              cielab       image has CIE L*a*b color model,
              icclab       image has ICC L*a*b color model,
              itulab       image has ITU L*a*b color model.

       -s     swap bytes fetched from the input file.

       -L     input data has LSB2MSB bit order (default).

       -M     input data has MSB2LSB bit order.

       -c     Specify a compression scheme to use when writing image data: -c none for no compression, -c packbits for
              the PackBits compression algorithm (the default), -c jpeg for the baseline JPEG  compression  algorithm,
              -c zip for the Deflate compression algorithm, and -c lzw for Lempel-Ziv & Welch.

       -r number
              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.

GUESSING THE IMAGE GEOMETRY
       raw2tiff can guess image width and height in case one or both of these parameters are  not  specified.  If  you
       omit  one  of  those  parameters,  the complementary one will be calculated based on the file size (taking into
       account header size, number of bands and data type). If you omit both parameters, the statistical approach will
       be  used.  Utility  will  compute  correlation  coefficient between two lines at the image center using several
       appropriate line sizes and the highest absolute value of the coefficient will indicate  the  right  line  size.
       That  is  why  you  should  be  cautious  with the very large images, because guessing process may take a while
       (depending on your system performance). Of course, the utility can't guess the header size, number of bands and
       data  type,  so it should be specified manually. If you don't know anything about your image, just try with the
       several combinations of those options.

       There is no magic, it is just a mathematical statistics, so it can be wrong in some cases. But for  most  ordi-
       nary images guessing method will work fine.

SEE ALSO
       pal2rgb(1), tiffcp(1), tiffmedian(1), libtiff(3)

       Libtiff library home page: http://www.remotesensing.org/libtiff/



libtiff                        November 2, 2005                    RAW2TIFF(1)