Opened 11 years ago
Last modified 5 years ago
#5183 closed defect
Artifacts in Image Using GDAL JP2KAK plugin for lossless 16 bit — at Version 2
Reported by: | swalter75 | Owned by: | warmerdam |
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Priority: | normal | Milestone: | closed_because_of_github_migration |
Component: | GDAL_Raster | Version: | svn-trunk |
Severity: | normal | Keywords: | |
Cc: |
Description (last modified by )
When converting Int16 data to JP2KAK with the -co "QUALITY=100" option, strange artifacts are created in the nodata values and in some cases also in the image data (not in the example below). Using the conversion without the lossless option everything works (but the image has a near black seam).
For example, the problem can be inspected with this xample data (Mars elevation):
http://www.geoinf.fu-berlin.de/h0533_0000.dt4.53.tif
The following command gives strange results:
gdal_translate -ot Int16 -of JP2KAK -co "QUALITY=100" h0533_0000.dt4.53.tif h0533_0000.dt4.53_qual100.jp2
While this command gives expected results:
gdal_translate -ot Int16 -of JP2KAK h0533_0000.dt4.53.tif h0533_0000.dt4.53.jp2
The problem has already been described in this thread, but never been addresses (as far as I know):
http://lists.osgeo.org/pipermail/gdal-dev/2011-February/027900.html
Here is a link to the resulting problematic image:
http://www.geoinf.fu-berlin.de/h0533_0000.dt4.53_qual100.jp2
Change History (2)
comment:1 by , 11 years ago
Description: | modified (diff) |
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comment:2 by , 11 years ago
Description: | modified (diff) |
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