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<section id="changes-in-tiff-v3-6-1">
<h1>Changes in TIFF v3.6.1<a class="headerlink" href="#changes-in-tiff-v3-6-1" title="Permalink to this heading">¶</a></h1>
<table class="docutils align-default" id="id1">
<caption><span class="caption-text">References</span><a class="headerlink" href="#id1" title="Permalink to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p>Current Version</p></td>
<td><p>v3.6.1 (<a class="reference external" href="https://gitlab.com/libtiff/libtiff/-/tags/Release-v3-6-1">tag Release-v3-6-1</a>)</p></td>
</tr>
<tr class="row-even"><td><p>Previous Version</p></td>
<td><p><a class="reference internal" href="v3.6.0.html"><span class="doc">v3.6.0</span></a></p></td>
</tr>
<tr class="row-odd"><td><p>Master Download Site</p></td>
<td><p><a class="reference external" href="https://download.osgeo.org/libtiff/">https://download.osgeo.org/libtiff/</a></p></td>
</tr>
<tr class="row-even"><td><p>Master HTTP Site</p></td>
<td><p><a class="reference external" href="http://www.simplesystems.org/libtiff/">http://www.simplesystems.org/libtiff/</a></p></td>
</tr>
</tbody>
</table>
<p>This document describes the changes made to the software between the
<em>previous</em> and <em>current</em> versions (see above).
If you don’t find something listed here, then it was not done in this
timeframe, or it was not considered important enough to be mentioned.
The following information is located here:</p>
<section id="major-changes">
<h2>Major changes<a class="headerlink" href="#major-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p>New utility <strong class="program">tiff2pdf</strong>
for converting TIFF images directly into PDF.</p></li>
<li><p>New <a class="reference internal" href="../functions/TIFFcolor.html"><span class="doc">TIFFcolor</span></a> color conversion module.</p></li>
<li><p>Full support for <code class="docutils literal notranslate"><span class="pre">Orientation</span></code> tag in <code class="docutils literal notranslate"><span class="pre">TIFFRGBAImage</span></code> interface.</p></li>
<li><p>Many bugs fixed.</p></li>
</ul>
</section>
<section id="software-configuration-changes">
<h2>Software configuration changes<a class="headerlink" href="#software-configuration-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/makefile.vc</span></code>, <code class="file docutils literal notranslate"><span class="pre">tools/makefile.vc</span></code>: Support for IJG JPEG library.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">Makefile.in</span></code>: Add an absolute path to the <code class="file docutils literal notranslate"><span class="pre">test_pics.sh</span></code> call.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">Makefile.in</span></code>: Add an absolute path to the <code class="file docutils literal notranslate"><span class="pre">test_pics.sh</span></code> call.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tiffcomp.h</span></code>: <code class="docutils literal notranslate"><span class="pre">#define</span> <span class="pre">_BSDTYPES_DEFINED</span></code> when defining BSD typedefs.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">configure</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/Makefile.in</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/mkversion.c</span></code>: Relative buildings fixed.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">Makefile.in</span></code>: Add an absolute path to the <code class="file docutils literal notranslate"><span class="pre">test_pics.sh</span></code> call.</p></li>
</ul>
</section>
<section id="library-changes">
<h2>Library changes<a class="headerlink" href="#library-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_color.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tif_getimage.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tiffio.h</span></code>:
Added support for <code class="docutils literal notranslate"><span class="pre">ReferenceBlackWhite</span></code> tag handling when converted from YCbCr color space as
per bug <a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=120">Remote Sensing bugzilla #120 [no longer available]</a>.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_getimage.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tif_aux.c</span></code>: Read <code class="docutils literal notranslate"><span class="pre">WhitePoint</span></code> tag from the
file and properly use it for CIE Lab 1976 to RGB transform.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_getimage.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tiffio.h</span></code>: Finally resolved problems with
orientation handling. <code class="docutils literal notranslate"><span class="pre">TIFFRGBAImage</span></code> interface now properly supports all
possible orientations, i.e. images will be flipped both in horizontal and
vertical directions if required. ‘Known bugs’ section now removed from the
appropriate manual pages.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_luv.c</span></code>: Fixed bug in 48-bit to 24-bit conversion routine,
reported by Antonio Scuri.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tiffio.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tif_codec.c</span></code>: Added new function
<a class="reference internal" href="../functions/TIFFcodec.html#c.TIFFIsCODECConfigured" title="TIFFIsCODECConfigured"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFIsCODECConfigured()</span></code></a>, suggested by Ross Finlayson.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_ojpeg.c</span></code>: <a class="reference internal" href="../functions/TIFFGetField.html#c.TIFFVGetField" title="TIFFVGetField"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFVGetField()</span></code></a> function now can properly extract
the fields from the OJPEG files. Patch supplied by Ross Finlayson.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_dir.h</span></code>: <code class="xref c c-func docutils literal notranslate"><span class="pre">_TIFFFindOrRegisterdInfo()</span></code> declaration replaced
with <code class="xref c c-func docutils literal notranslate"><span class="pre">_TIFFFindOrRegisterFieldInfo()</span></code> as reported by Ross Finlayson.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_dirinfo.c</span></code>: Implemented binary search in <code class="xref c c-func docutils literal notranslate"><span class="pre">_TIFFMergeFieldInfo()</span></code>.
Patch supplied by Ross Finlayson.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">tif_dirread.c</span></code>: do not mark all anonymously defined tags to be <code class="docutils literal notranslate"><span class="pre">IGNORE</span></code> (as
it was done in 3.6.0).</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tiff.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tif_dirinfo.c</span></code>: Added support for IFD (13) datatype,
introduced in “Adobe PageMaker TIFF Technical Notes”.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_color.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tif_getimage.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tiffio.h</span></code>: New color space
conversion code: CIE L*a*b* 1976 images now supported by the <code class="docutils literal notranslate"><span class="pre">TIFFRGBAImage</span></code>
interface. YCbCr to RGB conversion code also moved there and now has
<a class="reference internal" href="../functions/TIFFcolor.html"><span class="doc">TIFFcolor</span></a> publicly available interface. These
routines currently used in <code class="docutils literal notranslate"><span class="pre">TIFFRGBAImage</span></code> interface only and not supported in
other libtiff tools yet. So if you want, for example, to convert CIE Lab image
into PostScript file you should do it in two steps: change colorspace to RGB
using <strong class="program">tiff2rgba</strong> utility and then process
it with the <strong class="program">tiff2ps</strong>.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_tile.c</span></code>: Remove spurious use of “s” (sample) in the
<code class="docutils literal notranslate"><span class="pre">planarconfig_contig</span></code> case in <a class="reference internal" href="../functions/TIFFtile.html#c.TIFFComputeTile" title="TIFFComputeTile"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFComputeTile()</span></code></a> as per bug <a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=387">Remote Sensing bugzilla #387 [no longer available]</a>.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tiffiop.h</span></code>: New macros: <code class="xref c c-macro docutils literal notranslate"><span class="pre">TIFFmax</span></code> and <code class="xref c c-macro docutils literal notranslate"><span class="pre">TIFFmin</span></code>.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tiffio.h</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tif_strip.c</span></code>: Added <a class="reference internal" href="../functions/TIFFstrip.html#c.TIFFRawStripSize" title="TIFFRawStripSize"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFRawStripSize()</span></code></a> function
as suggested by Chris Hanson.</p></li>
<li><p><code class="file docutils literal notranslate"><span class="pre">libtiff/tif_lzw.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">libtiff/tif_fax3.c</span></code>: Proper support for update mode
as per bug <a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=424">Remote Sensing bugzilla #424 [no longer available]</a>.</p></li>
</ul>
</section>
<section id="tools-changes">
<h2>Tools changes<a class="headerlink" href="#tools-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p><strong class="program">tiff2pdf</strong>:: New tool, written by
Ross Finlayson, to directly convert TIFF files to PDF.</p></li>
<li><p><strong class="program">tiffgt</strong>: Unmaintained and platform
dependent sgigt utility removed and replaced with the completely rewritten
portable tool (depend on OpenGL and
GLUT). This tool will not build by default.</p></li>
<li><p><strong class="program">ras2tiff</strong>: Properly determine
SUN Rasterfiles with the reverse byte order (it is reported by the magic
header field). Problem reported by Andreas Wiesmann.</p></li>
<li><p><strong class="program">raw2tiff</strong>: Implemented image size
guessing using correlation coefficient calculation between two neighbour
lines.</p></li>
</ul>
</section>
<section id="contributed-software-changes">
<h2>Contributed software changes<a class="headerlink" href="#contributed-software-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p><code class="file docutils literal notranslate"><span class="pre">contrib/pds/tif_pdsdirread.c</span></code>, <code class="file docutils literal notranslate"><span class="pre">contrib/pds/tif_pdsdirwrite.c</span></code>:
Use <a class="reference internal" href="../functions/TIFFDataWidth.html#c.TIFFDataWidth" title="TIFFDataWidth"><code class="xref c c-func docutils literal notranslate"><span class="pre">TIFFDataWidth()</span></code></a> function instead of <code class="xref c c-var docutils literal notranslate"><span class="pre">tiffDataWidth</span></code> array.</p></li>
</ul>
</section>
<section id="lzw-compression-kit-changes">
<h2>LZW compression kit changes<a class="headerlink" href="#lzw-compression-kit-changes" title="Permalink to this heading">¶</a></h2>
<ul class="simple">
<li><p>Proper support for update mode as per bug <a class="reference external" href="http://bugzilla.remotesensing.org/show_bug.cgi?id=424">Remote Sensing bugzilla #424 [no longer available]</a>.</p></li>
</ul>
</section>
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<h3><a href="../index.html">Table of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Changes in TIFF v3.6.1</a><ul>
<li><a class="reference internal" href="#major-changes">Major changes</a></li>
<li><a class="reference internal" href="#software-configuration-changes">Software configuration changes</a></li>
<li><a class="reference internal" href="#library-changes">Library changes</a></li>
<li><a class="reference internal" href="#tools-changes">Tools changes</a></li>
<li><a class="reference internal" href="#contributed-software-changes">Contributed software changes</a></li>
<li><a class="reference internal" href="#lzw-compression-kit-changes">LZW compression kit changes</a></li>
</ul>
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