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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta name="generator" content=
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"HTML Tidy for Solaris (vers 12 April 2005), see www.w3.org">
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<title>TIFF Tools Overview</title>
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</head>
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<body bgcolor="white">
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<h1><font face="Arial, Helvetica, Sans"><img src="images/quad.jpg"
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width="144" height="108" align="left" border="1" hspace="6"> TIFF
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Tools Overview</font></h1>
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<p>This software distribution comes with a small collection of
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programs for converting non-TIFF format images to TIFF and for
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manipulating and interogating the contents of TIFF images. Several
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of these tools are useful in their own right. Many of them however
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are more intended to serve as programming examples for using the
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TIFF library.</p>
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<h3>Device-dependent Programs</h3>
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There are two device-dependent programs that serve as simple
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examples for writing programs to display and save TIFF images.
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<table border cellpadding="3">
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<tr>
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<td valign="top" width="10%">
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<tt>tiffgt </tt></td>
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<td>Display the contents of one or more TIFF images using OpenGL.
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The software makes extensive use of the <tt>TIFFRGBAImage</tt>
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facilities described elsewhere.</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiffsv</tt></td>
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<td>A program to save all or part of a screen dump on a Silicon
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Graphics system. As for <tt>tiffgt</tt> this code, while written to
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use the IRIS GL, can be easily tailored to other devices.</td>
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</tr>
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</table>
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<h3>Device-independent Programs</h3>
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The remaining programs should be device-independent:
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<table border cellpadding="3">
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<tr>
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<td valign="top" width="10%"><tt>bmp2tiff</tt></td>
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<td>Convert BMP images to TIFF</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>fax2ps</tt></td>
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<td>Convert a Group 3- or Group 4- compressed TIFF to PostScript
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that is significantly more compressed than is generated by
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<tt>tiff2ps</tt> (unless <tt>tiff2ps</tt> writes PS Level II)</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>fax2tiff</tt></td>
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<td>Convert raw Group 3 or Group 4 facsimile data to TIFF</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>gif2tiff</tt></td>
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<td>A quick hack that converts GIF 87a format images to TIFF</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>pal2rgb</tt></td>
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<td>Convert a Palette-style image to a full color RGB image by
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applying the colormap</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>ppm2tiff</tt></td>
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<td>A quick hack that converts PPM format images to TIFF</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>ras2tiff</tt></td>
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<td>A quick hack that converts Sun rasterfile format images to TIFF
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-- it's less than complete</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>raw2tiff</tt></td>
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<td>Create a TIFF file from raw data</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>rgb2ycbcr</tt></td>
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<td>Convert an RGB, grayscale, or bilevel TIFF image to a YCbCr
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TIFF image; it's mainly provided for testing</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>sgi2tiff</tt></td>
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<td>A program to convert SGI image files to TIFF. This program is
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only useful on SGI machines as it uses <tt>-limage</tt>.</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>thumbnail</tt></td>
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<td>Copy a bilevel TIFF to one that includes 8-bit greyscale
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"thumbnail images" for each page; it is provided as an example of
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how one might use the <tt>SubIFD</tt> tag (and the library support
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for it)</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiff2bw</tt></td>
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<td>A simple program to convert a color image to grayscale</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiff2pdf</tt></td>
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<td>Convert TIFF images to PDF</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiff2ps</tt></td>
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<td>Convert TIFF images to PostScript</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiff2rgba</tt></td>
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<td>Convert a TIFF image to RGBA color space</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiffcmp</tt></td>
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<td>Compare the contents of two TIFF files (it does not check all
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the directory information, but does check all the data)</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiffcp</tt></td>
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<td>Copy, concatenate, and convert TIFF images (e.g. switching from
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Compression=5 to Compression=1)</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiffdither</tt></td>
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<td>Dither a b&w image into a bilevel image (suitable for use
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in creating fax files)</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiffdump</tt></td>
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<td>Display the verbatim contents of the TIFF directory in a file
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(it's very useful for debugging bogus files that you may get from
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someone that claims they support TIFF)</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiffinfo</tt></td>
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<td>Display information about one or more TIFF files.</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiffmedian</tt></td>
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<td>A version of Paul Heckbert's median cut program that reads an
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RGB TIFF image, and creates a TIFF palette file as a result; it's
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useful for converting full-color RGB images to 8-bit color for your
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friends that have cheapo 8-bit framebuffers.</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiffset</tt></td>
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<td>Set a field in a TIFF header</td>
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</tr>
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<tr>
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<td valign="top" width="10%"><tt>tiffsplit</tt></td>
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<td>Create one or more single-image files from a (possibly)
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multi-image file</td>
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</tr>
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</table>
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<p>Check out the manual pages for details about the above
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programs.</p>
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<hr>
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Last updated: $Date: 2006/01/03 02:16:07 $
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</body>
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</html>
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