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  <div class="section" id="release-notes">
<h1>Release notes<a class="headerlink" href="#release-notes" title="Permalink to this headline"></a></h1>
<div class="section" id="version-2-2-0-25-05-2017">
<h2>Version 2.2.0 (25-05-2017)<a class="headerlink" href="#version-2-2-0-25-05-2017" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>New format for grabbing screenshots (for Windows and OS X).</li>
<li>New format for grabbing image data from clipboard (Window only).</li>
<li>Multipage Tiff files can now be read using <code class="docutils literal"><span class="pre">volread()</span></code> to obtain the image
data as one array.</li>
<li>Updated the ffmpeg executables that imageio provides.</li>
<li>The ffmpeg format can now also use the ffmpeg exe provided by the ffmpeg
conda package (<code class="docutils literal"><span class="pre">conda</span> <span class="pre">install</span> <span class="pre">ffmpeg</span> <span class="pre">-c</span> <span class="pre">conda-forge</span></code>).</li>
<li>Fixes to ffmpeg format in general.</li>
<li>Improve docs and rounding in animated GIF duration.</li>
<li>Fix for setting number of loops in animated GIF.</li>
<li>Fixes for transparent images in Pillow.</li>
<li>Fixes for float indexing that is disallowed in new Numpy (Freeimage plugin).</li>
<li>Fix for using missing <code class="docutils literal"><span class="pre">close()</span></code> on Pillow images.</li>
<li>Updated version of tiffile plugin.</li>
</ul>
</div>
<div class="section" id="version-2-1-2-02-02-2017">
<h2>Version 2.1.2 (02-02-2017)<a class="headerlink" href="#version-2-1-2-02-02-2017" title="Permalink to this headline"></a></h2>
<p>A bugfix release:</p>
<ul class="simple">
<li>Fix animated gif writer that was broken in newer Pillow version.</li>
<li>FFMPEG plugin improvements: more reliable fps detection, can deal
with missing FPS, more reliable subprocess termination,</li>
<li>Mimread allows a few missing frames to better deal with certain video files.</li>
<li>Allow question marks in url&#8217;s.</li>
<li>Allow Pillow plugin to read remote files by &#8220;enabling&#8221; <code class="docutils literal"><span class="pre">seek()</span></code> and <code class="docutils literal"><span class="pre">tell()</span></code>.</li>
<li>Use invoke to run development tasks instead of custom &#8220;make&#8221; module.</li>
</ul>
</div>
<div class="section" id="version-2-1-1-24-12-2016">
<h2>Version 2.1.1 (24-12-2016)<a class="headerlink" href="#version-2-1-1-24-12-2016" title="Permalink to this headline"></a></h2>
<p>Minor improvements related to Debian packaging.</p>
</div>
<div class="section" id="version-2-1-22-12-2016">
<h2>Version 2.1 (22-12-2016)<a class="headerlink" href="#version-2-1-22-12-2016" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Standard images now have to be specified using e.g.
<code class="docutils literal"><span class="pre">imageio.imread('imageio:chelsea.png')</span></code> to be more explicit about being
a special case and potentially involving a download.</li>
<li>Improvements and fixes for the ffmpeg plugin (including improved seeking).</li>
<li>Several tweaks to the tests and setup script to make it pass the Debian
build system.</li>
</ul>
</div>
<div class="section" id="version-2-0-10-12-2016">
<h2>Version 2.0 (10-12-2016)<a class="headerlink" href="#version-2-0-10-12-2016" title="Permalink to this headline"></a></h2>
<p>This release introduces a new plugin based on Pillow, which will take care of
the &#8220;common formats&#8221; like PNG and JPEG, which was previously the role of the
FreeImage plugin. The latter is still available but the FreeImage library
is no longer distributed by default.</p>
<ul class="simple">
<li>New Pillow plugin to privide the common formats.</li>
<li>FreeImage plugin gets lower priority w.r.t. resolving a format.</li>
<li>No more automatic downloading of libraries and executable (for
FreeImage, FFMPEG and AVBIN plugins).</li>
<li>Pillow plugin comes with a format to read/write animated GIF to supersede
the one provided by FreeImage.</li>
<li>Various improvements/fixes to the ffmpeg plugin.</li>
<li>Fixes and improvements of the DICOM plugin.</li>
<li>Better support of exr images via FreeImage (by Joel Nises).</li>
<li>New FEI format (for images produced by the FEI SEM microscope).</li>
</ul>
</div>
<div class="section" id="version-1-6-19-09-2016">
<h2>Version 1.6 (19-09-2016)<a class="headerlink" href="#version-1-6-19-09-2016" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Got rid of Lena image because it can be regarded offensive and is not (explicitly) publicly licensed.</li>
<li>Fix issue with ffmpeg reader being slow on particular systems (#152).</li>
<li>Tiff plugin updated.</li>
<li>Add Tiff resolution support (Antony Lee).</li>
<li>Support for 16bit PNG&#8217;s (#150, by OrganicIrradiation).</li>
<li>Fixes to ffmpeg plugin (#149, #145, #129).</li>
<li>Fix in using IMAGEIO_FREEIMAGE_LIB (#141, by Radomirs Cirskis)</li>
<li>Better ffmpeg verbosity and exe detection ( #138, #139, by Tim D. Smith).</li>
</ul>
</div>
<div class="section" id="version-1-5-31-01-2016">
<h2>Version 1.5 (31-01-2016)<a class="headerlink" href="#version-1-5-31-01-2016" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Freeimage conda package (in main channel) is updated and works on all
major OS&#8217;s.</li>
<li>Conda install imageio!</li>
<li>Fix bug where the ffmpeg plugin fails on certain video files (#131).</li>
<li>Fix how dicom uses dcmtk for JPEG compressed files.</li>
</ul>
</div>
<div class="section" id="version-1-4-18-11-2015">
<h2>Version 1.4 (18-11-2015)<a class="headerlink" href="#version-1-4-18-11-2015" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Various improvements to the ffmpeg plugin.</li>
<li>New tiffile plugin that should support most scientific formats.</li>
<li>New simpleITK wrapper plugin.</li>
<li>New gdal plugin.</li>
<li>Freeimage plugin can load freeimage lib provided by conda.</li>
<li>Dicom plugin improved handling of compressed files.</li>
<li>Most plugins adopt lazy loading to keep imageio lean, fast, and scalable.</li>
<li>We now build wheels for Pypi.</li>
<li>Travis also tests Python 3.5.</li>
</ul>
</div>
<div class="section" id="version-1-3-02-07-2015">
<h2>Version 1.3 (02-07-2015)<a class="headerlink" href="#version-1-3-02-07-2015" title="Permalink to this headline"></a></h2>
<p>This release features several fixes and small improvements, especially
to the ffmpeg plugin.</p>
<ul class="simple">
<li>Fix &#8216;FrameTime&#8217; in first frame of GIF image (#90)</li>
<li>Fix that writing video could freeze on Windows (#84)</li>
<li>Fix that ffmpeg process was sometimes not closed correctly (#79)</li>
<li>Also protect user from clogging the machine for mvolread (#89)</li>
<li>Better support for platforms other than Win/Linux/OSX (#87 )</li>
<li>Support for reading from webcam on OSX (#83, #85)</li>
<li>Support for dpx via the ffmpeg plugin (#81)</li>
<li>Support for wmv via the ffmpeg plugin (#83)</li>
<li>The ffmpeg plugin allows specifying pixelformat. The new default is
more widely supported (#83)</li>
<li>Allow passing additional arguments to ffmpeg command (#83)</li>
<li>Quality of ffmpeg output now set via quality param instead of bitrate (#83)</li>
<li>Imageio now has a few (documented) environment variables to specify
the locations of plugin libraries/exes (thus preventing them from
being automatically downloaded.</li>
</ul>
</div>
<div class="section" id="version-1-2-23-02-2015">
<h2>Version 1.2 (23-02-2015)<a class="headerlink" href="#version-1-2-23-02-2015" title="Permalink to this headline"></a></h2>
<p>Basically a hotfix release. But some new features were introduced.</p>
<ul class="simple">
<li>Fixed that pip-installing would put README.md and other files in sys.prefix.</li>
<li>The used ffmpeg exe can be overridden with an environment variable
&#8216;IMAGEIO_FFMPEG_EXE&#8217;.</li>
<li>Relative paths work again.</li>
<li>FFMPEG plugin moved to correct timeframe when seeking (thanks Zulko)</li>
</ul>
</div>
<div class="section" id="version-1-1-04-02-2015">
<h2>Version 1.1 (04-02-2015)<a class="headerlink" href="#version-1-1-04-02-2015" title="Permalink to this headline"></a></h2>
<p>Imageio is now a dependency of <a class="reference external" href="https://github.com/Zulko/moviepy/">Moviepy</a>,
which exposed a few issues to fix. Imageio is now also available as a
Debian package (thanks Ghislain!). Furher, we tweaked our function names
to be cleared and more consistent (the old names still work).</p>
<ul class="simple">
<li>All <code class="docutils literal"><span class="pre">Xsave()</span></code> functions are renamed to <code class="docutils literal"><span class="pre">Xwrite()</span></code>.
Also <code class="docutils literal"><span class="pre">read()</span></code> and <code class="docutils literal"><span class="pre">save()</span></code> are now <code class="docutils literal"><span class="pre">get_reader()</span></code> and <code class="docutils literal"><span class="pre">get_writer()</span></code>.
The old names are available as aliases (and will be for the foreseable
future) for backward compatibility.</li>
<li>Protect user from bringing computer in swap-mode by doing e.g.
<code class="docutils literal"><span class="pre">mimread('hunger</span> <span class="pre">games.avi')</span></code>.</li>
<li>Continuous integration for Windows via Appveyor.</li>
<li>All imports are relative, so imageio can be used as a subpackage in
a larger project.</li>
<li>FFMPEG is the default plugin for reading video (since AVBIN has issues).</li>
<li>Better handling on NaN and Inf when converting to uint8.</li>
<li>Provide dist packages that include freeimage lib and a few example images.</li>
<li>Several changes to ease building into Debian package.</li>
<li>Fixed segfault when saving gif
(thanks levskaya, <a class="reference external" href="https://github.com/imageio/imageio/pull/53">https://github.com/imageio/imageio/pull/53</a>).</li>
<li>Don&#8217;t fail when userdir is not writable.</li>
<li>Gif plugin writer has fps param for consistency with avi/mp4 etc.</li>
</ul>
</div>
<div class="section" id="version-1-0-13-11-2014">
<h2>Version 1.0 (13-11-2014)<a class="headerlink" href="#version-1-0-13-11-2014" title="Permalink to this headline"></a></h2>
<p>In this release we did a lot of work to push imageio to a new level.
The code is now properly tested, and we have several more formats.</p>
<p>The big changes:</p>
<ul class="simple">
<li>Many unit tests were written to cover over 95% of the code base.
(the core of imageio has 100% coverage).</li>
<li>Setup continuous integration (CI) using Travis.</li>
<li>Imageio now follows PEP8 style guides (and this is tested with CI).</li>
<li>Refactoring of the code base. Resulting in a cleaner namespace.</li>
<li>Many improvements to the documementation.</li>
</ul>
<p>Plugins:</p>
<ul class="simple">
<li>The FFMPEG format is now well supported. Binaries are provided.</li>
<li>New AVBIN format for more efficient reading of video files.</li>
<li>New NPZ format that can store (a series of) arbitrarily shaped numpy arrays.</li>
<li>New SWF format (shockwave flash) for lossless animated images.</li>
<li>Improvements to the GIF format. The GIF and ANIGIF formats are now merged.</li>
</ul>
<p>Further:</p>
<ul class="simple">
<li>New simple website to act as a front page (<a class="reference external" href="http://imageio.github.io">http://imageio.github.io</a>).</li>
<li>Compatibility with Pypy.</li>
<li>We provide a range of <a class="reference internal" href="standardimages.html"><span class="doc">standard images</span></a> that are
automatically downloaded.</li>
<li>Binaries (libs and executables) that plugins of imageio uses are now
downloaded at runtime, not at build/install time. This simplifies
things a lot.</li>
<li>freeimage plugin now fully functional on pypy</li>
<li>Added utilities for developers (run <code class="docutils literal"><span class="pre">python</span> <span class="pre">make</span></code> from the repo root).</li>
<li>PNG, JPEG, BMP,GIF and other plugins can now handle float data (pixel
values are assumed to be between 0 and 1.</li>
<li>Imageio now expand the user dir when filename start with &#8216;~/&#8217;.</li>
<li>Many improvements and fixes overall.</li>
</ul>
</div>
<div class="section" id="version-0-5-1-23-06-2014">
<h2>Version 0.5.1 (23-06-2014)<a class="headerlink" href="#version-0-5-1-23-06-2014" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>DICOM reader closes file after reading pixel data
(avoid too-many-open-files error)</li>
<li>Support for video data (import and export) via ffmpeg</li>
<li>Read images from usb camera via ffmpeg (experimental)</li>
</ul>
</div>
<div class="section" id="version-0-4-1-26-10-2013">
<h2>Version 0.4.1 (26-10-2013)<a class="headerlink" href="#version-0-4-1-26-10-2013" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>We moved to github!</li>
<li>Raise error if URI could not be understood.</li>
<li>Small improvement for better error reporting.</li>
<li>FIxes in mvolread and DICOM plugin</li>
</ul>
</div>
<div class="section" id="version-0-4-27-03-2013">
<h2>Version 0.4 (27-03-2013)<a class="headerlink" href="#version-0-4-27-03-2013" title="Permalink to this headline"></a></h2>
<p>Some more thorough testing resulted in several fixes and improvements over
the last release.</p>
<ul class="simple">
<li>Fixes to reading of meta data in freeimage plugin which could
cause errors when reading a file.</li>
<li>Support for reading 4 bpp images.</li>
<li>The color table for index images is now applied to yield an RGBA image.</li>
<li>Basic support for Pypy.</li>
<li>Better __repr__ for the Image class.</li>
</ul>
</div>
<div class="section" id="version-0-3-2">
<h2>Version 0.3.2<a class="headerlink" href="#version-0-3-2" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Fix in dicom reader (RescaleSlope and RescaleIntercept were not found)</li>
<li>Fixed that progress indicator made things slow</li>
</ul>
</div>
<div class="section" id="version-0-3-1">
<h2>Version 0.3.1<a class="headerlink" href="#version-0-3-1" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Fix installation/distribution issue.</li>
</ul>
</div>
<div class="section" id="version-0-3-0">
<h2>Version 0.3.0<a class="headerlink" href="#version-0-3-0" title="Permalink to this headline"></a></h2>
<p>This was a long haul. Implemented several plugins for animation and
volumetric data to give an idea of what sort of API&#8217;s work and which
do not.</p>
<ul class="simple">
<li>Refactored for more conventional package layout
(but importing without installing still supported)</li>
<li>Put Reader and Writer classes in the namespace of the format. This
makes a format a unified whole, and gets rid of the
_get_reader_class and _get_write_class methods (at the cost of
some extra indentation).</li>
<li>Refactored Reader and Writer classes to come up with a better API
for both users as plugins.</li>
<li>The Request class acts as a smart bridging object. Therefore all
plugins can now read from a zipfile, http/ftp, and bytes. And they
don&#8217;t have to do a thing.</li>
<li>Implemented specific BMP, JPEG, PNG, GIF, ICON formats.</li>
<li>Implemented animated gif plugin (based on freeimage).</li>
<li>Implemented standalone DICOM plugin.</li>
</ul>
</div>
<div class="section" id="version-0-2-3">
<h2>Version 0.2.3<a class="headerlink" href="#version-0-2-3" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Fixed issue 2 (fail at instal, introduced when implementing freezing)</li>
</ul>
</div>
<div class="section" id="version-0-2-2">
<h2>Version 0.2.2<a class="headerlink" href="#version-0-2-2" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Improved documentation.</li>
<li>Worked on distribution.</li>
<li>Freezing should work now.</li>
</ul>
</div>
<div class="section" id="version-0-2-1">
<h2>Version 0.2.1<a class="headerlink" href="#version-0-2-1" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>Introduction of the imageio.help function.</li>
<li>Wrote a lot of documentation.</li>
<li>Added example (dummy) plugin.</li>
</ul>
</div>
<div class="section" id="version-0-2">
<h2>Version 0.2<a class="headerlink" href="#version-0-2" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>New plugin system implemented after discussions in group.</li>
<li>Access to format information.</li>
</ul>
</div>
<div class="section" id="version-0-1">
<h2>Version 0.1<a class="headerlink" href="#version-0-1" title="Permalink to this headline"></a></h2>
<ul class="simple">
<li>First version with a preliminary plugin system.</li>
</ul>
</div>
</div>


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  <h3><a href="index.html">Table Of Contents</a></h3>
  <ul>
<li><a class="reference internal" href="#">Release notes</a><ul>
<li><a class="reference internal" href="#version-2-2-0-25-05-2017">Version 2.2.0 (25-05-2017)</a></li>
<li><a class="reference internal" href="#version-2-1-2-02-02-2017">Version 2.1.2 (02-02-2017)</a></li>
<li><a class="reference internal" href="#version-2-1-1-24-12-2016">Version 2.1.1 (24-12-2016)</a></li>
<li><a class="reference internal" href="#version-2-1-22-12-2016">Version 2.1 (22-12-2016)</a></li>
<li><a class="reference internal" href="#version-2-0-10-12-2016">Version 2.0 (10-12-2016)</a></li>
<li><a class="reference internal" href="#version-1-6-19-09-2016">Version 1.6 (19-09-2016)</a></li>
<li><a class="reference internal" href="#version-1-5-31-01-2016">Version 1.5 (31-01-2016)</a></li>
<li><a class="reference internal" href="#version-1-4-18-11-2015">Version 1.4 (18-11-2015)</a></li>
<li><a class="reference internal" href="#version-1-3-02-07-2015">Version 1.3 (02-07-2015)</a></li>
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<li><a class="reference internal" href="#version-0-2">Version 0.2</a></li>
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