Minggu, 15 April 2012

Project: What's In A GIF - Bit by Byte

. Minggu, 15 April 2012 .

We sill start off by walking though the different parts of a GIF file. (The information on this page is primarily drawn from the W3C GIF89a specification.) A GIF file is made up of a bunch of different "blocks" of data. The following diagram shows all of the different types of blocks and where they belong in the file. The file starts at the left and works it's way right. At each branch you may go one way or the other. The large "middle" section can be repeated as many times as needed. (Technically, it may also be omitted completely but i can't imagine what good a GIF file with no image data would be.)

http://matthewflickinger.com/lab/whatsinagif/bits_and_bytes.asp

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