Ticket #2346 (new defect)

Opened 3 months ago

Last modified 3 months ago

gdaladdo generates blocky artifacts in original image

Reported by: sprice Assigned to: warmerdam
Priority: normal Milestone:
Component: default Version: unspecified
Severity: normal Keywords: gdaladdo
Cc:

Description

If you take the attached file and run the command "gdaladdo -r average N020W116_x2_trueMarble.tif 3 6 12 24 48 96" artifacts appear in the upper left of the dataset. The artifacts are about 16px high, and a total of 512px wide. I've seen the artifacts in black, reddish, solid, and blocky.

Change History

05/01/08 02:23:49 changed by sprice

Attachment won't work (file too large), so here's a URL:

http://ueod-globe.net/trueMarble/N020W116_x2_trueMarble.tif.gz

I should also mention that I'm running GDAL 1.5.1 on a Mac running 10.5.

05/02/08 13:42:30 changed by sprice

This problem does not seem to occur when using mode sampling.