ART: Difference between revisions
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== File Format == | == File Format == | ||
Integers seem to be in little-endian format. | |||
0x00 ( +2) ASCII characters "JG", likely for Johnson-Grace | |||
... | |||
0x0D ( +2) width | |||
0x0F ( +2) height | |||
[[Category:Image Formats]] | [[Category:Image Formats]] | ||
[[Category:Undiscovered Image Formats]] | [[Category:Undiscovered Image Formats]] | ||
== Format description == | |||
[https://www.google.com/patents/US5682152|U.S. Patent 5,682,152] Data compression using adaptive bit allocation and hybrid lossless entropy coding | |||
[https://www.google.com/patents/US5822456|U.S. Patent 5,822,456] Optimal spline interpolation for image compression | |||
[https://www.google.com/patents/US5892847|U.S. Patent 5,892,847] Method and apparatus for compressing images |
Latest revision as of 01:35, 2 June 2018
- Extension: art
- Company: AOL
- Samples: http://samples.mplayerhq.hu/image-samples/ART/
- Wikipedia page: http://en.wikipedia.org/wiki/ART_image_file_format (has some interesting links)
ART is an image format used on the America OnLine (AOL) service. The file format originated with a company named Johnson-Grace and was later acquired by AOL. Allegedly, the format is able to employ a number of different compression techniques depending on the characteristics of the image data.
File Format
Integers seem to be in little-endian format.
0x00 ( +2) ASCII characters "JG", likely for Johnson-Grace ... 0x0D ( +2) width 0x0F ( +2) height
Format description
Patent 5,682,152 Data compression using adaptive bit allocation and hybrid lossless entropy coding
Patent 5,822,456 Optimal spline interpolation for image compression
Patent 5,892,847 Method and apparatus for compressing images