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Difference between revisions of "GIF"

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(Further details: Link to "Inside the GIF file format")
(Specifications: Add MathType; enumerate fractint application authentication codes)
 
(2 intermediate revisions by 2 users not shown)
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* GIF87a: [http://web.archive.org/web/20100929230301/http://www.etsimo.uniovi.es/gifanim/gif87a.txt Text] (Stanford) / [http://www.w3.org/Graphics/GIF/spec-gif87.txt Text] (W3C)
 
* GIF87a: [http://web.archive.org/web/20100929230301/http://www.etsimo.uniovi.es/gifanim/gif87a.txt Text] (Stanford) / [http://www.w3.org/Graphics/GIF/spec-gif87.txt Text] (W3C)
* GIF89a: [http://www.w3.org/Graphics/GIF/spec-gif89a.txt Text] / [http://odur.let.rug.nl/~kleiweg/gif/GIF89a.html HTML]
+
* GIF89a: [http://www.w3.org/Graphics/GIF/spec-gif89a.txt Text] / [https://web.archive.org/web/20070715193723/http://odur.let.rug.nl/~kleiweg/gif/GIF89a.html HTML]
 
* GIF Application Extensions:
 
* GIF Application Extensions:
 
** <code>NETSCAPE</code> <code>2.0</code>
 
** <code>NETSCAPE</code> <code>2.0</code>
*** [http://odur.let.rug.nl/~kleiweg/gif/netscape.html GIF Application Extension: NETSCAPE2.0]
+
*** [https://web.archive.org/web/20140830100320/http://odur.let.rug.nl/~kleiweg/gif/netscape.html GIF Application Extension: NETSCAPE2.0]
 
*** [http://www.vurdalakov.net/misc/gif/netscape-looping-application-extension Netscape Looping Application Extension]
 
*** [http://www.vurdalakov.net/misc/gif/netscape-looping-application-extension Netscape Looping Application Extension]
 
*** [http://www.vurdalakov.net/misc/gif/netscape-buffering-application-extension Netscape Buffering Application Extension]
 
*** [http://www.vurdalakov.net/misc/gif/netscape-buffering-application-extension Netscape Buffering Application Extension]
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*** [http://www.color.org/icc1V42.pdf Specification ICC.1:2004-10 (Profile version 4.2.0.0) – Image technology colour management: Architecture, profile format, and data structure] (section B.6)
 
*** [http://www.color.org/icc1V42.pdf Specification ICC.1:2004-10 (Profile version 4.2.0.0) – Image technology colour management: Architecture, profile format, and data structure] (section B.6)
 
** <code>XMP Data</code> <code>XMP</code>
 
** <code>XMP Data</code> <code>XMP</code>
*** [http://wwwimages.adobe.com/www.adobe.com/content/dam/Adobe/en/devnet/xmp/pdfs/XMPSpecificationPart3.pdf XMP Specification, Part 3: Storage in Files] (section 2.1.2)
+
*** [http://wwwimages.adobe.com/www.adobe.com/content/dam/acom/en/devnet/xmp/pdfs/XMP%20SDK%20Release%20cc-2014-12/XMPSpecificationPart3.pdf XMP Specification, Part 3: Storage in Files] (section 1.1.2)
** <code>fractint</code>
+
** <code>fractint</code> <code>001</code> / <code>fractint</code> <code>002</code> / <code>fractint</code> <code>003</code> / <code>fractint</code> <code>004</code> / <code>fractint</code> <code>005</code> / <code>fractint</code> <code>006</code> / <code>fractint</code> <code>007</code>
 
*** [http://fractint.net/fractsvn/trunk/fractint/common/encoder.c fractint encoder source code]
 
*** [http://fractint.net/fractsvn/trunk/fractint/common/encoder.c fractint encoder source code]
 +
*** [http://fractint.net/fractsvn/trunk/fractint/common/loadfile.c fractint decoder source code], with notes and backwards compatibility for older versions of the fractint extension blocks. All of their extension blocks have names of the form <code>fractint<var>nnn</var></code>, where <code><var>nnn</var></code> is a 3 digit block number.
 +
** <code>MathType</code> <code>001</code> / <code>MathType</code> <code>002</code> / <code>MathType</code> <code>003</code>
 +
*** [http://www.inr.ac.ru/~blackbox/MathType/SDK/docs/baseline_gif.htm MathType baseline information]
 +
*** [http://www.dessci.com/en/support/mathtype/tsn/tsn147.htm MathType: GIFs do not retain their DPI properties] - descriptions and sample images could be used to reverse engineer format
  
 
=== Further details ===
 
=== Further details ===
  
* [[Wikipedia:Graphics Interchange Format]]
+
* [[Wikipedia:GIF]]
 
* [http://fileformats.archiveteam.org/wiki/GIF GIF File Format]
 
* [http://fileformats.archiveteam.org/wiki/GIF GIF File Format]
 
* [http://www.matthewflickinger.com/lab/whatsinagif/ What's in a GIF]
 
* [http://www.matthewflickinger.com/lab/whatsinagif/ What's in a GIF]
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* ImageTestSuite
 
* ImageTestSuite
** [http://code.google.com/p/imagetestsuite/wiki/GIFTestSuite Documentation]
+
** [https://github.com/Wormnest/imagetestsuite/blob/wiki/GIFTestSuite.md Documentation]
** [http://imagetestsuite.googlecode.com/files/imagetestsuite-gif-1.00.tar.gz Images (Archive)]
+
** [https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/imagetestsuite/imagetestsuite-gif-1.00.tar.gz Images (Archive)]
** [http://code.google.com/p/imagetestsuite/source/browse/trunk/gif/ Images (SVN)]
+
** [https://github.com/Wormnest/imagetestsuite/tree/master/gif Images (git)]
  
 
[[Category:Spec coordination]]
 
[[Category:Spec coordination]]

Latest revision as of 20:04, 20 November 2017

Animated GIFs need a spec that, in particular, specifies how to handle timings (not all browsers honor all values, so we should specify what needs to be honored exactly)

Implementations

Gecko

WebKit

Blink

Other

References

Specifications

Further details

Test images