raw2tiff(1) LibTIFF raw2tiff(1)
NAME
raw2tiff - create a TIFF file from a raw data file
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).
option -b number
number of bands in input image (1 by default).
-d datatype
type of samples in input image, where datatype may be one of:
+----------+----------------------------+
|Data type | Description |
+----------+----------------------------+
|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 sample interleaving in input image, where config may be
one of:
+--------------+------------------------+
|Configuration | Description |
+--------------+------------------------+
|pixel | pixel interleaved data |
| | (default) |
+--------------+------------------------+
|band | band interleaved data. |
+--------------+------------------------+
-p photo
photometric interpretation (color space) of the input image, where
photo may be one of:
+------------+-----------------------------+
|Photometric | Description |
+------------+-----------------------------+
|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, -c lzw
for Lempel-Ziv & Welch.
GUESSING THE IMAGE GEOMETRY
raw2tif 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 ordinary images guessing method will
work fine.
SEE ALSO
pal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)
AUTHOR
LibTIFF contributors
COPYRIGHT
1988-2022, LibTIFF contributors
4.5 December 23, 2022 raw2tiff(1)
tiff 4.5.0 - Generated Sat Dec 24 10:33:34 CST 2022