This software distribution comes with a small collection of programs
for converting non-TIFF format images to TIFF and for manipulating
and interogating 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.
tiffgt
Display the contents of one or
more TIFF images on a Silicon Graphics system using
the Silicon Graphics IRIS GL.
The software makes extensive use of the TIFFRGBAImage
facilities described elsewhere.
tiffsv
A program to save all or part of a screen dump on a Silicon
Graphics system.
As for tiffgt 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:
tiffinfo
Display information about one or more TIFF files.
tiffdump
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)
tiffcp
Copy, concatenate, and convert TIFF images (e.g.
switching from Compression=5 to Compression=1)
tiff2ps
Convert TIFF images to PostScript
tiffcmp
Compare the contents of two TIFF files (it does
not check all the directory information, but does check all the data)
tiff2bw
A simple program to convert a color image to grayscale
ras2tiff
A quick hack that converts Sun rasterfile format images to
TIFF -- it's less than complete
rgb2ycbcr
Convert an RGB, grayscale, or bilevel TIFF image to a
YCbCr TIFF image; it's mainly provided for testing
gif2tiff
A quick hack that converts GIF 87a format images to TIFF
ppm2tiff
A quick hack that converts PPM format images to TIFF
fax2tiff
Convert raw Group 3 or Group 4 facsimile data to TIFF
pal2rgb
Convert a Palette-style image to a full color RGB image by
applying the colormap
tiffdither
Dither a b&w image into a bilevel image (suitable for
use in creating fax files)
tiffsplit
Create one or more single-image files from a (possibly)
multi-image file
fax2ps
Convert a Group 3- or Group 4- compressed TIFF to PostScript
that is significantly more compressed than is generated by tiff2ps
(unless tiff2ps writes PS Level II)
thumbnail
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 SubIFD tag
(and the library support for it)
tiffmedian
A version of Paul Heckbert's median cut program
that reads an RGB TIFF image, and creates a TIFF palette file as a
result; it's useful for converting full-color RGB images to 8-bit
color for your friends that have cheapo 8-bit framebuffers.
sgi2tiff
A program to convert SGI image files to TIFF. This
program is only useful on SGI machines as it uses -limage.
Check out the manual pages for details about the above programs.