Task #4324 (accepted)
Opened 13 years ago
Last modified 13 years ago
JPEG2000 parameters testing — at Version 7
| Reported by: | cxallan | Owned by: | jburel |
|---|---|---|---|
| Priority: | minor | Milestone: | OMERO-Beta4.3 |
| Component: | General | Version: | n.a. |
| Keywords: | n.a. | Cc: | jamoore, jrswedlow, cxallan |
| Resources: | n.a. | Referenced By: | n.a. |
| References: | n.a. | Remaining Time: | 1.0d |
| Sprint: | 2011-03-10 (7) |
Description (last modified by jburel)
Investigate JPEG2000, writing and testing methods
Test various combination of parameters
e.g. EncodingType, compression quality etc
Change History (7)
comment:1 Changed 13 years ago by dzmacdonald
- Status changed from new to accepted
comment:2 Changed 13 years ago by dzmacdonald
- Owner dzmacdonald deleted
- Status changed from accepted to new
comment:3 Changed 13 years ago by jburel
- Sprint changed from 2011-02-24 (6) to 2011-03-10 (7)
comment:4 Changed 13 years ago by jburel
- Cc jburel added
Test for 512x512:
- compression of full image lossy/Lossless factor of 4 in size reduction i.e. 84KB / 320KB
- compression per plane (16 planes) lossy/Lossless: 16 KB / 2.7MB
comment:5 Changed 13 years ago by jburel
- Cc jmoore added; jburel removed
- Description modified (diff)
- Owner set to jburel
- Status changed from new to accepted
comment:6 Changed 13 years ago by jburel
- Description modified (diff)
- Remaining Time changed from 1.5 to 1
- Summary changed from JPEG2000 lossy compressed visualisation to JPEG2000 parameters testing
comment:7 Changed 13 years ago by jburel
- Description modified (diff)
testing parameters for creating jpeg 1.3MB image 1540x844:
progession Type
tile specified (256, 256) -> no tile specified
- res 1620ms ->1233ms
- layer (default): 1589ms -> 1231ms
- res-pos 1601 -> 1221ms
- pos-comp: 1591-> 1236
- comp-pos: 1609 -> 1309
use default progression type i.e. layer
- lossy: 1235
- lossless:1259
Compression quality
- 1f 1228 high quality image default
- 0.2 1260 high compression
Number of decomposition levels
- 5: 1275
- 10: 1275
- 12: 1382
- 15: 2035
- 18: 6873
- 19: 12373
- 20: Out of Memory Error
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Referencing ticket #4252 has changed sprint.