id summary reporter owner description type status priority milestone component version severity resolution keywords cc 5111 gdalwarp doesn't copy TIF color interpretation for alpha band cdestigter warmerdam "In gdal 1.9.2, warping from an RGBA tif into a new file with the following command-line: gdalwarp -te 0.0 -20037508.3428 20037508.3428 0.0 -of GTiff -ts 4096 4096 -co TILED=YES -co COMPRESS=DEFLATE -r bilinear in.tif out-1.9.tif # then upgrade gdal to 1.10, then gdalwarp -te 0.0 -20037508.3428 20037508.3428 0.0 -of GTiff -ts 4096 4096 -co TILED=YES -co COMPRESS=DEFLATE -r bilinear in.tif out-1.10.tif Here's the diff of the gdalinfo output for the output files from 1.9.2 and 1.10: https://gist.github.com/craigds/872515177f92c04024e2 In summary the color interpretation is no longer copied to the target in 1.10. Luckily 1.10 did add a workaround; if I add '-setci' to the command-line it fixes the problem. In light of the existence of the new -setci flag, it's possible this is intended behaviour, but it's backwards incompatible and I couldn't find any docs on this, so I consider it a regression." defect closed normal 1.10.1 GDAL_Raster 1.10.0 normal invalid Robert Coup cdestigter