Graphics, Graphics Format, Web Articles for Dummies
There are dozens of graphic file formats—some are unique to particular programs such as Photoshop, Illustrator or Freehand. Others you may run into and might have to convert into a different format as not all programs will open all graphic file formats. For example, Photoshop can’t open WMF files and HyperStudio can’t open PNG files!
You need to understand some basic concepts and terminology about graphic files for digital imaging to make sense and to make good choices when you are working with images on a computer. You may want to refer to this at some time in the future.
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GIF
Graphic Interchange Format was created by CompuServe in the 1980s. These files are extremely small due to a lossless compression scheme. Since they are a very old file format, they have a low bit depth, 8-bit, limiting them to 256 colors—this is often referred to as indexed color mode. One advantage of the GIF format is that one color can be transparent—allowing the background upon which the graphic is placed to show. That is one reason this format is one of the two most popular formats for the web..
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Full article: https://edmt.wikidot.com/graphic-file-formats
License: Creative Commons Attribution-ShareAlike 3.0
Indexed in May 2008
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Graphics, Graphics Format, Web Client
Yesterday’s featured tutorial on Ajaxian.com was titled: Hacking transparent PNG support into IE6 with IE PNG Fix, CSS and jQuery by Brian Dillard.
I wonder how this tutorial got onto Ajaxian as the topic is so much out of date. Ajaxian has always been a place of inspiration and a pit stop for the latest and greatest in the world of JavaScript and the whole Web scene. I was a little put off by this tutorial, though out of curiosity took a dive in anyway.
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In the spirit of progress enhancement, which they avidly promote, they should have ignored IE6 and gave those users square boxes! However, for this particular case we’re in luck as there is an alternative—convert those dreaded PNG32s into transparent PNG8s!
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Full article: http://yelotofu.com/2008/04/the-png-transparency-trap/
License: Creative Commons
Indexed in May 2008
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Graphics, Graphics Format
All of us know three famous image formats for publishing pictures on the web: .gif, .jpeg (.jpg), .png. Let’s see their features and which is suitable for each use.
Compuserve GIF (.gif): GIF format is suitable for small icons, buttons, logos and images with animation..
Joint Picture Experts Group (.jpeg, .jpg): One positive of jpeg against GIF is the support of 24-bit color,..
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Full article: http://blog.typpz.com
License: Creative Commons Attribution-Share Alike 3.0 Unported
Indexed in April 2008
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Graphics Format
GraphML is a comprehensive and easy-to-use file format for graphs. It consists of a language core to describe the structural properties of a graph and a flexible extension mechanism to add application-specific data. Its main features include support of
- directed, undirected, and mixed graphs,
- hypergraphs
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Full article: http://graphml.graphdrawing.org/
License: Creative Commons Attribution 3.0 License
Indexed in March 2008
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