CompuServe RLE
From Just Solve the File Format Problem
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− | '''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]]. | + | '''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 either 128×96 or 256×192. Images are [[Run-length encoding|RLE-compressed]]. | The image dimensions are either 128×96 or 256×192. Images are [[Run-length encoding|RLE-compressed]]. |
Revision as of 01:03, 18 September 2015
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 either 128×96 or 256×192. Images are RLE-compressed.
Files consist entirely of ASCII characters, though some are control characters.
Contents |
Identification
Files begin with bytes 0x1B 0x47 0x4D
(128×96) or 0x1B 0x47 0x48
(256×192).
Software
- Netpbm (starting with version 10.48): cistopbm, pbmtocis
Sample files
- Assorted RLE Files.zip
- ftp://8bitfiles.net/archives/compuserve-file-archive/22%20Graphics%20&%20Utilities/ → *.RLE