| Parameter | British Library | Library of Congress | Wellcome Library | National Library of Medicine (USA) | {*}National Library Czech Republic master copy{*} | National Library Czech Republic | National Library Czech Republic | Add yours here.... |
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| Used for | Newspapers | All still images (masters) | Book page images | Books, periodicals, maps, manuscripts (masters) | Books, periodicals (production masters) |
Maps, manuscripts (production masters) | ||||
| Conversion software used | Leadtools | Kakadu | LuraWave | Djatoka / Kakadu | Kakadu | Kakadu | Kakadu | |||
| File format | Part 1 (.jp2) | Part 1 (.jp2) | Part 1 (.jp2) | Part 1 (.jp2) | Part 1 (.jp2) | Part 1 (.jp2) | Part 1 (.jp2) | |||
| Lossy or lossless | Lossy | Lossy | Lossy (some lossless) |
Lossless | Lossless | Lossy | Lossy | |||
| Typical compression | 6:1 | 9:1 | 2:1 to 3:1 | 20:1 to 30:1 it is quite high compress ratio, it may be changed according our needs |
8:1 to 10:1 | |||||
| Tiling | none | 1024 x 1024 | 1024 x 1024 | none | 4096x4096 | 1024x1024 | 1024x1024 | |||
| Progression order | RPCL | RLCP | RPCL | RPCL | RPCL | RPCL | RPCL | |||
| Number of decomposition levels | 6 | 6 | 5 | 6 | 5 or 6 | 5 | 5 or 6 /6 layers for over-sized material/ | |||
| Number of quality layers | Multiple | 25 | 8 | 6 | 1 | 12 /logarithmic/ | 12 /logarithmic/ | |||
| Code block size (xcb = ycb) |
6 | 6 | 6 | 6 | 6 | 6 | ||||
| Transformation | 9-7 irreversible filter | 9-7 irreversible filter | 9-7 irreversible filter | 5-3 reversible | 9-7 irreversible | 9-7 irreversible | ||||
| Precinct size | 256x256 for first two decomp. levels, 128 by 128 for lower levels | Not used | Not explicitly specified | 256x256 for first two decomp. levels, 128 by 128 for lower levels | 256x256 for first two decomp. levels, 128 by 128 for lower levels | 256x256 for first two decomp. levels, 128 by 128 for lower levels | 256x256 for first two decomp. levels, 128 by 128 for lower levels | |||
| Regions of Interest | No | No | No | No | No | No | ||||
| Code block size | 64x64 | 64x64 | 64x64 | 32x32 | 64x64 | 64x64 | 64x64 | |||
| TLM markers | No | Yes | No | Yes “R” | Yes “R” | Yes “R” | ||||
| Bypass | YES | YES | YES |
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