#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)

gdal_optimize_kakadu_chunk_size.patch (1.0 KB) - added by bugbuster 13 months ago.

Download all attachments as: .zip

Change History (2)

Changed 13 months ago by bugbuster

comment:1 Changed 13 months ago by Even Rouault

Resolution: fixed
Status: newclosed

In 39247:

JP2KAK: dummy commit to specify that r39246 fixes #6941 (and not 6939...)

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