biff2tiff

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Name
Syntax
Description
Options
Restrictions
See also
Author
Examples
Id

Name

biff2tiff - Convert an image from BIFF to TIFF format

Syntax

biff2tiff [-rgb | -p | -bw] [-c <comp>] <BIFF-image> [<colortable filename>] <TIFF-image>

Description

Convert all the bands of BIFF-image to a TIFF image. Default behaviour is to convert to a grayscale image.

Byte-ordering between little-endian and big-endian machines is handled automatically.

The conversion is according to TIFF specification 6.0 and uses the libtiff library by Sam Leffler. This library must exist on your system, it is not supplied with XITE. If you get problems with importing XITE-produced TIFF images into other applications, make sure those applications are also TIFF 6.0 compliant.

Options

-bw

Convert the grayscale BIFF-image to a bilevel TIFF image, by thresholding at the value 128.

-rgb

BIFF-image must contain three bands (rgb), which are converted to a TIFF rgb color image.

-p

A colortable filename must be supplied as a command line argument. In this case, the first band of the image is converted to a TIFF palette (pseudocolor) image.

-c comp

Specify compression, where comp may be one of

none: No compression
lzw: Lempel-Ziv & Welch, for grayscale, palette and rgb images.
packbits: Packbits compression, for bilevel images.
huff: CCITT 1D Huffman compression, for bilevel images.
fax3: CCITT Group 3 Facsimile compression, for bilevel images.
fax4: CCITT Group 4 Facsimile compression, for bilevel images.

Restrictions

biff2tiff supports the following conversions


 For grayscale images:

   From BIFF                       To TIFF
 unsigned byte               1-bit
 unsigned byte               8-bit unsigned byte
 signed byte                 8-bit signed byte
 unsigned short              16-bit unsigned short
 signed short                16-bit signed short
 signed integer              32-bit signed integer
 floating point              32-bit floating point
 64-bit floating             64-bit floating point

 For palette (pseudocolor) images:

   From BIFF                        To TIFF
 unsigned byte               8-bit unsigned byte

 For rgb color images:

   From BIFF                        To TIFF
 three-band unsigned byte    3*8-bit unsigned byte (rgb)
 three-band signed byte      3*8-bit signed byte (rgb)
 three-band unsigned short   3*16-bit unsigned short (rgb)
 three-band signed short     3*16-bit signed short (rgb)
 three-band signed integer   3*32-bit signed integer (rgb)
 three-band floating point   3*32-bit floating point (rgb)
 three-band 64-bit fl. pnt.  3*64-bit floating point (rgb)

biff2tiff

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