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Old 14 June 2017, 22:37   #1
NorthWay
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Join Date: May 2013
Location: Grimstad / Norway
Posts: 613
Are there any compressors/tools that re-arrange/block-divide data(pictures)?

AFAIK (corrections welcome) both IFF and GIF store picture data on a line by line basis.
Colours are typically much more locally clustered, and this is also how JPEG (and others?) arrange pixel data to take advantage of local similarities.

Are there any compressors or other tools that will do such blocking or rearranging of data to increase compression ratios?
Can you affect the ratio for a standard IFF/GIF by re-arranging the palette and thereby the data combinations?
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