Hi, The file I'm using is actually MG2, using only 3 bands.
Note, thats its the same file I used for testing in 1.7.x aswell. - Oyvind On Fri, May 13, 2011 at 4:08 PM, Kirk McKelvey <[email protected]>wrote: > Is this with MG3 or MG4 files? MG4 uses an alpha channel instead of > nodata, so what you describe would be expected in that case. > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Oyvind Idland > *Sent:* vendredi 13 mai 2011 04:28 > *To:* [email protected] > *Subject:* [gdal-dev] GDAL 1.8.0 and MrSid "no-data" values > > > > Hi, > > I just updated to 1.8.0 from 1.7, using the MrSid DSDK 8.0. > > In order to handle transparency, i have until now used the metadata values > from "IMAGE__NO_DATA_VALUE", > and simply masked away pixels. > > After upgrading, the IMAGE__NO_DATA_VALUE yields nothing, neither is it > listed when using gdalinfo. > > The band->GetNoDataValue() doesn't give me any hints either. > > Should I handle this in a different way ? > > > -- Oyvind >
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