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Data Compression
Criteria
Survey Formats
Basics
Compression Methods
Data Formats
Run Length Encoding
General Principle
Control Characters
RLE for Image Data
Implementations
MS-Windows .bmp RLE8
Encoded Mode
Absolute Mode
Marker
Example "B"
"B" uncompressed
MS-Windows .bmp RLE4
Glossary
Index
Download
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Example "B" uncompressed with 256 colours

Encoded Data:
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
14 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00
13 FF FF 00 00 00 00 00 00 00 00 00 FF FF FF FF 00
12 FF FF FF FF 00 00 00 FF FF FF 00 00 FF FF FF 00
11 FF FF FF FF 00 00 00 FF FF FF FF 00 00 FF FF 00
10 FF FF FF FF 00 00 00 FF FF FF FF 00 00 FF FF 00
9 FF FF FF FF 00 00 00 FF FF FF FF 00 00 FF FF 00
8 FF FF FF FF 00 00 00 FF FF FF 00 00 FF FF FF 00
7 FF FF FF FF 00 00 00 FF 00 00 00 FF FF FF FF 00
6 FF FF FF FF 00 00 00 FF 00 00 00 FF FF FF FF 00
5 FF FF FF FF 00 00 00 FF FF FF 00 00 FF FF FF 00
4 FF FF FF FF 00 00 00 FF FF FF FF 00 00 FF FF 00
3 FF FF FF FF 00 00 00 FF FF FF FF 00 00 FF FF 00
2 FF FF FF FF 00 00 00 FF FF FF 00 00 00 FF FF 00
1 FF FF 00 00 00 00 00 00 00 00 00 00 FF FF FF 00
0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00
- 256 colours
- Colour index 00: black
- Colour index FF: white
- 15 lines
- 15 pixels per line
- Lines extended to 16 pixels
- Extended pixels set to colour index 00
- File size including header and colour table: 1.318 byte
- File size data area: 300 byte
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