RAW2TIFF(1)						      General Commands Manual						       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  over-
       ridden, 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 read-
	      ing.

       -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 approxi-
	      mately 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  any-
       thing 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 ordinary images guessing method
       will work fine.

SEE ALSO

       pal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)

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

libtiff 							 November 2, 2005						       RAW2TIFF(1)