[gdal-dev] Problem with image overview creation in GTiff files

[brian]

by any chance do these tiffs have 4 bands? rgba?

brian

On Thu, 2008-10-16 at 16:03 -0500, Ozy Sjahputera wrote:
> I am trying to create image overviews for a GTiff file using 
> GDALDataset::BuildOverviews. I keep getting various errors such as:
> 
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag "Compression" while 
> writing
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag "ImageWidth" while 
> writing
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag 
> "PlanarConfiguration" while writing
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag "BitsPerSample" 
> while writing
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag "SamplesPerPixel" 
> while writing
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag "Compression" while 
> writing
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag 
> "PhotometricInterpretation" while writing
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag "SampleFormat" while 
> writing
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag "TileWidth" while 
> writing
> ERROR 1: TIFFSetField:VISUAL.tif: Cannot modify tag "TileLength" while 
> writing
> ERROR 1: TIFFBuildOverviews:Can not write tiles to a stripped image
> 
> 
> Here is my code:
> 
>     int OverviewList[5] = { 2, 4, 8, 16, 32 };
>     CPLErr overview_err = outDS->BuildOverviews( "AVERAGE_MAGPHASE", 5, 
> OverviewList, 0, NULL, NULL, NULL );
> 
> 
> I have used BuildOverviews before on HFA images and they are fine. Any idea?
> 
> Thanks
> Ozy
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/gdal-dev