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<title>TIFF Tools Overview</title>

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width="144" height="108" align="left" border="1" hspace="6"> TIFF

Tools Overview

This software distribution comes with a small collection of

programs for converting non-TIFF format images to TIFF and for

manipulating and interrogating the contents of TIFF images. Several

of these tools are useful in their own right. Many of them however

are more intended to serve as programming examples for using the

TIFF library.

Device-dependent Programs

There are two device-dependent programs that serve as simple

examples for writing programs to display and save TIFF images.

<tt>tiffgt    </tt>

Display the contents of one or more TIFF images using OpenGL.

The software makes extensive use of the <tt>TIFFRGBAImage</tt>

facilities described elsewhere.

<tt>tiffsv</tt>

A program to save all or part of a screen dump on a Silicon

Graphics system. As for <tt>tiffgt</tt> this code, while written to

use the IRIS GL, can be easily tailored to other devices.

Device-independent Programs

The remaining programs should be device-independent:

<tt>bmp2tiff</tt>

Convert BMP images to TIFF

<tt>fax2ps</tt>

Convert a Group 3- or Group 4- compressed TIFF to PostScript

that is significantly more compressed than is generated by

<tt>tiff2ps</tt> (unless <tt>tiff2ps</tt> writes PS Level II)

<tt>fax2tiff</tt>

Convert raw Group 3 or Group 4 facsimile data to TIFF

<tt>gif2tiff</tt>

A quick hack that converts GIF 87a (old) format images to TIFF

<tt>pal2rgb</tt>

Convert a Palette-style image to a full color RGB image by

applying the colormap

<tt>ppm2tiff</tt>

A quick hack that converts 8-bit PPM format images to TIFF

<tt>ras2tiff</tt>

A quick hack that converts Sun rasterfile format images to TIFF

-- it's less than complete

<tt>raw2tiff</tt>

Create a TIFF file from raw data

<tt>rgb2ycbcr</tt>

Convert an RGB, grayscale, or bilevel TIFF image to a YCbCr

TIFF image; it's mainly provided for testing

<tt>sgi2tiff</tt>

A program to convert SGI image files to TIFF. This program is

only useful on SGI machines as it uses <tt>-limage</tt>.

<tt>thumbnail</tt>

Copy a bilevel TIFF to one that includes 8-bit greyscale

"thumbnail images" for each page; it is provided as an example of

how one might use the <tt>SubIFD</tt> tag (and the library support

for it)

<tt>tiff2bw</tt>

A simple program to convert a color image to grayscale

<tt>tiff2pdf</tt>

Convert TIFF images to PDF

<tt>tiff2ps</tt>

Convert TIFF images to PostScript

<tt>tiff2rgba</tt>

Convert a TIFF image to RGBA color space

<tt>tiffcmp</tt>

Compare the contents of two TIFF files (it does not check all

the directory information, but does check all the data)

<tt>tiffcp</tt>

Copy, concatenate, and convert TIFF images (e.g. switching from

Compression=5 to Compression=1)

<tt>tiffcrop</tt>

Provides selection of images from within one or more multi-image

TIFF files, with orthogonal rotation, mirroring, cropping, and

extraction of multiple sections and exporting to one or more files.

It extends the functionality of tiffcp to support additional bit

depths in strips and tiles and enhances the selection capabilities of

tiffsplit. Bilevel images can be inverted and images may be split into

segments to fit on multiple /pages/ (standard paper sizes), plus other

functions described in the tiffcrop man page

<tt>tiffdither</tt>

Dither a b&w image into a bilevel image (suitable for use

in creating fax files)

<tt>tiffdump</tt>

Display the verbatim contents of the TIFF directory in a file

(it's very useful for debugging bogus files that you may get from

someone that claims they support TIFF)

<tt>tiffinfo</tt>

Display information about one or more TIFF files.

<tt>tiffmedian</tt>

A version of Paul Heckbert's median cut program that reads an

RGB TIFF image, and creates a TIFF palette file as a result

<tt>tiffset</tt>

Set a field in a TIFF header

<tt>tiffsplit</tt>

Create one or more single-image files from a (possibly)

multi-image file

Check out the manual pages for details about the above

programs.

Last updated: $Date: 2009-10-28 22:13:37 $