CompuServe RLE

File Format
Name	CompuServe RLE
Ontology	Electronic File Formats Graphics CompuServe RLE ; ; ;
Extension(s)	.rle

Revision as of 02:57, 28 December 2023

CompuServe RLE is a bi-level image format that was used by the CompuServe on-line service. In some ways, it is the predecessor of GIF.

The image dimensions are 256×192 or (rarely?) 128×96. Images are RLE-compressed.

Files consist entirely of ASCII characters, though some are control characters.

Files begin with bytes 0x1B 0x47 0x48 (256×192) or 0x1B 0x47 0x4D (128×96).

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 == Sample files ==
 * [http://www.classiccmp.org/cpmarchives/trs80/Software/Model%204/A/Assorted%20RLE%20Files%20(19xx)(Author%20Unknown)%5bRLE%5d.zip Assorted RLE Files.zip]
-* ftp://8bitfiles.net/archives/compuserve-file-archive/22%20Graphics%20&%20Utilities/ → *.RLE
+* ftp://8bitfiles.net/archives/compuserve-file-archive/22%20Graphics%20
-* https://telparia.com/fileFormatSamples/image/compuServeRLE/
-== Resources ==
-* [http://staticweb.rasip.fer.hr/research/compress/algorithms_run-length_coding.htm#examples CompuServe standard for RLE file format] ([https://web.archive.org/web/20140721001738/http://staticweb.rasip.fer.hr/research/compress/algorithms_run-length_coding.htm#examples archived])