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The Python Imaging Library
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$Id: CHANGES 2934 2006-12-03 12:14:00Z fredrik $
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ACKNOWLEDGEMENTS: PIL wouldn't be what it is without the help of,
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among others: David Ascher, Phil Austin, Douglas Bagnall, Larry Bates,
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Anthony Baxter, William Baxter, Denis Benoit, Jan Blom, Duncan Booth,
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Jeff Breidenbach, Roger Burnham, Gene Cash, Kevin Cazabon, Fred Clare,
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Greg Coats, Chris Cogdon, Greg Couch, Bill Crutchfield, Abel Deuring,
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Tim Docker, Fred Drake, Graham Dumpleton, Matthew Ellis, Eric
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Etheridge, Robin Friedrich, Pier Paolo Glave, Federico Di Gregorio,
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Markus Gritsch, Daniel Haertle, Greg Hamilton, Mark Hammond, Bernhard
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Herzog, Rob Hooft, Bob Ippolito, Jack Jansen, Bill Janssen, Edward
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Jones, Richard Jones, H�kan Karlsson, Robert Kern, David Kirtley, Bob
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Klimek, Matthias Klose, Andrew Kuchling, Magnus K�llstr�m, Victor
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Lacina, Ben Last, Hamish Lawson, Cesare Leonardi, Andrew MacIntyre,
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Jan Matejek, Naveen Michaud-Agrawal, Gordon McMillan, Skip Montanaro,
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Fredrik Nehr, Russell Nelson, Luciano Nocera, Travis Oliphant, Piet
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van Oostrum, Richard Oudkerk, Paul Pharr, Andres Polit, Eric Raymond,
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Victor Reijs, Bertil Reinhammar, Nicholas Riley, Don Rozenberg, Toby
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Sargeant, Barry Scott, Les Schaffer, Joel Shprentz, Klamer Shutte,
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Gene Skonicki, Niki Spahiev, D. Alan Stewart, Perry Stoll, Paul
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Svensson, Ulrik Svensson, Miki Tebeka, Ivan Tkatchev, Dan Torop, Adam
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Twardoch, Rune Uhlin, Dmitry Vasiliev, Sasha Voynow, Charles Waldman,
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Dan Wolfe, and Ka-Ping Yee.
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ACKNOWLEDGEMENTS: PIL wouldn't be what it is without the help of:
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David Ascher, Phil Austin, Douglas Bagnall, Larry Bates, Anthony
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Baxter, William Baxter, Denis Benoit, Jan Blom, Duncan Booth, Alexey
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Borzenkov, Jeff Breidenbach, Roger Burnham, Zac Burns, Gene Cash,
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Kevin Cazabon, Fred Clare, Greg Coats, Chris Cogdon, Greg Couch, Bill
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Crutchfield, Abel Deuring, Tim Docker, Fred Drake, Graham Dumpleton,
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Matthew Ellis, Eric Etheridge, Daniel Fetchinson, Robin Friedrich,
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Pier Paolo Glave, Federico Di Gregorio, Markus Gritsch, Daniel
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Haertle, Greg Hamilton, Mark Hammond, Bernhard Herzog, Rob Hooft, Bob
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Ippolito, Jack Jansen, Bill Janssen, Edward Jones, Richard Jones,
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Håkan Karlsson, Robert Kern, David Kirtley, Bob Klimek, Matthias
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Klose, Andrew Kuchling, Magnus Källström, Victor Lacina, Ben Last,
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Hamish Lawson, Cesare Leonardi, Andrew MacIntyre, Jan Matejek, Naveen
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Michaud-Agrawal, Gordon McMillan, Skip Montanaro, Fredrik Nehr,
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Russell Nelson, Luciano Nocera, Travis Oliphant, Piet van Oostrum,
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Richard Oudkerk, Paul Pharr, Andres Polit, Conrado Porto Lopes Gouvêa,
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Eric Raymond, Victor Reijs, Bertil Reinhammar, Nicholas Riley, Don
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Rozenberg, Toby Sargeant, Barry Scott, Les Schaffer, Joel Shprentz,
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Klamer Shutte, Gene Skonicki, Niki Spahiev, D. Alan Stewart, Perry
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Stoll, Paul Svensson, Ulrik Svensson, Miki Tebeka, Michael van
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Tellingen, Ivan Tkatchev, Dan Torop, Adam Twardoch, Rune Uhlin, Dmitry
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Vasiliev, Sasha Voynow, Charles Waldman, Collin Winter, Dan Wolfe,
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Ka-Ping Yee, and many others (if your name should be on this list, let
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*** Changes from release 1.1.6 to 1.1.7 ***
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This section may not be fully complete. For changes since this file
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was last updated, see the repository revision history:
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http://bitbucket.org/effbot/pil-2009-raclette/changesets/
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+ Set GIF loop info property to the number of iterations if a NETSCAPE
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loop extension is present, instead of always setting it to 1 (from
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+ Improved PNG compression (from Alexey Borzenkov).
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+ Read interlaced PNG files (from Conrado Porto Lopes Gouvêa)
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+ Added various TGA improvements from Alexey Borzenkov, including
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support for specifying image orientation.
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+ Bumped block threshold to 16 megabytes, made size estimation a bit
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more accurate. This speeds up allocation of large images.
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+ Fixed rounding error in ImagingDrawWideLine.
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"gormish" writes: ImagingDrawWideLine() in Draw.c has a bug in every
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version I've seen, which leads to different width lines depending on
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the order of the points in the line. This is especially bad at some
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angles where a 'width=2' line can completely disappear.
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+ Added support for RGBA mode to the SGI module (based on code by
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+ Handle repeated IPTC tags (adapted from a patch by Eric Bruning).
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Eric writes: According to the specification, some IPTC tags can be
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repeated, e.g., tag 2:25 (keywords). PIL 1.1.6 only retained the last
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instance of that tag. Below is a patch to store all tags. If there are
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multiple tag instances, they are stored in a (python) list. Single tag
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instances remain as strings.
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+ Fixed potential crash in ImageFilter for small target images
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(reported by Zac Burns and Daniel Fetchinson).
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+ Use BMP instead of JPEG as temporary show format on Mac OS X.
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+ Fixed putpixel/new for I;16 with colors > 255.
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+ Added integer power support to ImagingMath.
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+ Added limited support for I;16L mode (explicit little endian).
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+ Moved WMF support into Image.core; enable WMF rendering by default
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if renderer is available.
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+ Mark the ARG plugin as obsolete.
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+ Added version query mechanism to ImageCms and ImageFont, for
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+ Added (experimental) ImageCms function for fetching the ICC profile
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for the current display (currently Windows only).
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Added HWND/HDC support to ImageCms.get_display_profile().
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+ Added WMF renderer (Windows only).
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+ Added ImagePointHandler and ImageTransformHandler mixins; made
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ImageCmsTransform work with im.point.
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+ Fixed potential endless loop in the XVThumbnail reader (from Nikolai
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+ Added Kevin Cazabon's pyCMS package.
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The C code has been moved to _imagingcms.c, the Python interface
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module is installed as PIL.ImageCMS.
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Added support for in-memory ICC profiles.
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Unified buildTransform and buildTransformFromOpenProfiles.
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The profile can now be either a filename, a profile object, or a
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file-like object containing an in-memory profile.
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Additional fixes from Florian Böch:
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Very nice - it just needs LCMS flags support so we can use black
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point compensation and softproofing :) See attached patches. They
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also fix a naming issue which could cause confusion - display
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profile (ImageCms wording) actually means proof profile (lcms
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wording), so I changed variable names and docstrings where
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applicable. Patches are tested under Python 2.6.
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+ Improved support for layer names in PSD files (from Sylvain Baubeau)
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Sylvain writes: I needed to be able to retrieve the names of the
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layers in a PSD files. But PsdImagePlugin.py didn't do the job so I
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wrote this very small patch.
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+ Improved RGBA support for ImageTk for 8.4 and newer (from Con
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This replaces the slow run-length based encoding model with true
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compositing at the Tk level.
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+ Added support for 16- and 32-bit images to McIdas loader.
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Based on file samples and stand-alone reader code provided by Craig
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+ Added ImagePalette support to putpalette.
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+ Fixed problem with incremental parsing of PNG files.
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+ Make selftest.py report non-zero status on failure (from Mark
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+ Add big endian save support and multipage infrastructure to the TIFF
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writer (from Sebastian Haase).
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+ Handle files with GPS IFD but no basic EXIF IFD (reported by Kurt
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+ Added zTXT support (from Andrew Kuchling via Lowell Alleman).
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+ Fixed potential infinite loop bug in ImageFont (from Guilherme Polo).
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+ Added sample ICC profiles (from Kevin Cazabon)
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+ Fixed array interface for I, F, and RGBA/RGBX images.
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+ Added Chroma subsampling support for JPEG (from Justin Huff).
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Justin writes: Attached is a patch (against PIL 1.1.6) to provide
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control over the chroma subsampling done by the JPEG encoder. This
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is often useful for reducing compression artifacts around edges of
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+ Added USM/Gaussian Blur code from Kevin Cazabon.
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+ Fixed bug w. uninitialized image data when cropping outside the
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+ Use ImageShow to implement the Image.show method.
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Most notably, this picks the 'display' utility when available. It
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also allows application code to register new display utilities via
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the ImageShow registry.
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+ Release the GIL in the PNG compressor (from Michael van Tellingen).
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+ Revised JPEG CMYK handling.
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Always assume Adobe behaviour, both when reading and writing (based on
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a patch by Kevin Cazabon, and test data by Tim V. and Charlie Clark, and
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additional debugging by Michael van Tellingen).
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+ Support for preserving ICC profiles (by Florian Böch via Tim Hatch).
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It's a beta, so still needs some testing, but should allow you to:
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- retain embedded ICC profiles when saving from/to JPEG, PNG, TIFF.
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Existing code doesn't need to be changed.
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- access embedded profiles in JPEG, PNG, PSD, TIFF.
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It also includes patches for TIFF to retain IPTC, Photoshop and XMP
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metadata when saving as TIFF again, read/write TIFF resolution
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information correctly, and to correct inverted CMYK JPEG files.
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+ Fixed potential memory leak in median cut quantizer (from Evgeny Salmin).
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+ Fixed OverflowError when reading upside-down BMP images.
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+ Added resolution save option for PDF files.
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Andreas Kostyrka writes: I've included a patched PdfImagePlugin.py
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based on 1.1.6 as included in Ubuntu, that supports a "resolution"
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save option. Not great, but it makes the PDF saving more useful by
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allowing PDFs that are not exactly 72dpi.
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+ Look for Tcl/Tk include files in version-specific include directory
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(from Encolpe Degoute).
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+ Fixed grayscale rounding error in ImageColor.getcolor (from Tim
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+ Fixed calculation of mean value in ImageEnhance.Contrast (reported
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by "roop" and Scott David Daniels).
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+ Fixed truetype positioning when first character has a negative left
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bearing (from Ned Batchelder):
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Ned writes: In PIL 1.1.6, ImageDraw.text will position the string
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incorrectly if the first character has a negative left bearing. To
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see the problem, show a string like "///" in an italic font. The
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first slash will be clipped at the left, and the string will be
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+ Fixed resolution unit bug in tiff reader/writer (based on code by
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Florian Höch, Gary Bloom, and others).
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+ Added simple transparency support for RGB images (reported by
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+ Added support for Unicode filenames in ImageFont.truetype (from Donn
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+ Fixed potential crash in ImageFont.getname method (from Donn Ingle).
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+ Fixed encoding issue in PIL/WalImageFile (from Santiago M. Mola).
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*** Changes from release 1.1.5 to 1.1.6 ***
added
removed
CHANGES
