Opened 7 years ago
Closed 7 years ago
#6941 closed enhancement (fixed)
Kakadu support : chunk size optimization
| Reported by: | bugbuster | Owned by: | warmerdam |
|---|---|---|---|
| Priority: | normal | Milestone: | |
| Component: | default | Version: | 2.2.0 |
| Severity: | normal | Keywords: | |
| Cc: |
Description
In the current implementation, the Kakadu driver limits the block size to 2048 X 128.
We are dealing with large JPEG2000 satellite images which usually are tiled with 1024X1024 or 2048X2048 tile sizes (e.g. SPOT6 images). After some testing, we measured an improvement when the block size is equal to a tile size.
To deal with too large tiles (or no tiles at all), it is necessary to keep an upper limit, say 2048 X 2048.
Attachments (1)
Change History (2)
by , 7 years ago
| Attachment: | gdal_optimize_kakadu_chunk_size.patch added |
|---|
comment:1 by , 7 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
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