Ticket #1713 (closed defect: worksforme)

Opened 7 years ago

Last modified 6 years ago

JPEG2000 in NITF not using optimized RasterIO()

Reported by: warmerdam Owned by: warmerdam
Priority: normal Milestone: 1.5.0
Component: GDAL_Raster Version: svn-trunk
Severity: normal Keywords: nitf jpeg2000
Cc: gaopeng

Description

When an NITF file has a JPEG2000 image in it, there is no attempt to use the optimized dataset level RasterIO() method available for the JP2KAK driver.

Change History

Changed 7 years ago by warmerdam

I have confirmed that the trunk and 1.4-esri branch already have optimized dataset level RasterIO() calls for NITFdatasets to the jp2kak driver - so I'm not exactly sure why performance is reported to be poor. Following up on details.

Changed 6 years ago by warmerdam

  • status changed from new to closed
  • resolution set to worksforme

I believe in followup it seemed that the issue was particular to the way some jpeg2000 files were created and how the kakadu library accesses them. No apparent action due within GDAL.

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