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h2. Full case studies
* [Wellcome Library|http://wiki.opf-labs.org/display/JP2/Wellcome+Library] \- JP2 as an archive and access format for all digital images
* [Wellcome Library|http://wiki.opf-labs.org/display/JP2/Wellcome+Library] \- JP2 as an archive and access format for all digital images
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h2. JPEG2000 profiles
| *Parameter* | *British Library* | *Library of Congress* \[1\] | *Wellcome Library* \[2\] | *National Library of Medicine (USA)* | *National Library Czech Republic \[4\] MC* | *National Library Czech Republic \[4\] PMC* | *National Library Czech Republic \[4\] PMC* | _Add yours here.... _ \\ |
| *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 | 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 | RLCP | 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 | | | 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 | |
1. Library of Congress [report |http://www.loc.gov/ndnp/pdf/NDNP_JP2HistNewsProfile.pdf]
2. Wellcome [report |http://library.wellcome.ac.uk/assets/wtx056572.pdf]
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h2. JPEG2000 profiles
| *Parameter* | *British Library* | *Library of Congress* \[1\] | *Wellcome Library* \[2\] | *National Library of Medicine (USA)* | *National Library Czech Republic \[4\] MC* | *National Library Czech Republic \[4\] PMC* | *National Library Czech Republic \[4\] PMC* | _Add yours here.... _ \\ |
| *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 | 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 | RLCP | 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 | | | 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 | |
1. Library of Congress [report |http://www.loc.gov/ndnp/pdf/NDNP_JP2HistNewsProfile.pdf]
2. Wellcome [report |http://library.wellcome.ac.uk/assets/wtx056572.pdf]
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