Opened 14 years ago

Closed 14 years ago

Last modified 14 years ago

#3488 closed defect (duplicate)

gdalwarp using JPEG encoded GeoTiff produces artifacts in output file

Reported by: jnovak Owned by: warmerdam
Priority: normal Milestone:
Component: default Version: 1.7.1
Severity: normal Keywords: GeoTIFF JPEG encoding


Reprojecting an EPSG:4326 JPEG encoded input file to EPSG:900913 JPEG encoded output file produces black horizontal banding in output file. The input file contains four overviews. The output files were viewed using GlobalMapper v10.02.

GDAL 1.7.1 compiled from source on Ubuntu Karmic (9.10) using

./configure --with-python --with-libtiff=internal --with-libjpeg=internal --without-jasper

Defective output file created using

gdalwarp -co "COMPRESS=JPEG" -co "PHOTOMETRIC=YCBCR" -co "JPEG_QUALITY=85" -t_srs EPSG:900913

Using the commands

gdalwarp -t_srs EPSG:900913

gdal_translate -co "COMPRESS=JPEG" -co "PHOTOMETRIC=YCBCR" -co "JPEG_QUALITY=85"

produces an artifact free output file

The source files for this test are proprietary images; I can try to reproduce using other files if required.

Change History (2)

comment:1 by Even Rouault, 14 years ago

Resolution: duplicate
Status: newclosed

There's quite strong reason to think this is a manifestation of #3458. This was fixed in trunk and in branches/1.7 as well by r19010 (this will go in 1.7.2). Could you try to apply this changeset and retry ? If still observing the artifact after applying the fix, please reopen

comment:2 by jnovak, 14 years ago

Suggested fix applied and verified.

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