Ticket #4029 (assigned defect)
gdaladdo produces blank overviews
|Reported by:||ysiddiqui||Owned by:||warmerdam|
The gdaladdo executable in v1.6.3 (modification date 2010-12-08) produces blank (black) overviews when run on JPEG-compressed GeoTIFF files. A previous version of gdaladdo, with a modification date of 2010-02-05, produces good overviews. Somewhere between these two builds, the overview process got corrupted.
A sample file before overview generation is attached to this ticket. The command used to generate overviews is as follows:
gdaladdo -r average gdaladdo.tif 2 4 8 16 32