CompuServe RLE
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== Sample files == | == 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] | * [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 | + | * ftp://8bitfiles.net/archives/compuserve-file-archive/22%20Graphics%20&%20Utilities/ → *.RLE |
| + | * 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]) | ||
Revision as of 03:05, 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.
Contents |
Identification
Files begin with bytes 0x1B 0x47 0x48 (256×192) or 0x1B 0x47 0x4D (128×96).
Software
- Netpbm (starting with version 10.48): cistopbm, pbmtocis
- Tom's Editor
- Deark
- CompuShow 2000! v2.04a (DOS software)
Sample files
- Assorted RLE Files.zip
- ftp://8bitfiles.net/archives/compuserve-file-archive/22%20Graphics%20&%20Utilities/ → *.RLE
- https://telparia.com/fileFormatSamples/image/compuServeRLE/
