Re: [gdal-dev] Slow createCopy()

Tom, I've created a 1.2 GB NITF image whose characteristics are : Driver: NITF/National Imagery Transmission Format Files: big.ntf Size is 3, 2 Band 1 Block=1024x1024 Type=UInt16, ColorInterp=Gray What is the size (width x height) of your input image ? Then with GDAL 1.4.2, I did :

Re: [gdal-dev] Slow createCopy()

And even if your input and output datasets are scanline oriented, you are using a VRT as an intermediate, and VRT has blocks of size 128x128... Le Monday 24 November 2008 23:10:13 Frank Warmerdam, vous avez écrit : > Tom V. wrote: > > Hi, > > > > I'm using gdal 1.4.2 to write out NITF and GeoTiff

Re: [gdal-dev] Slow createCopy()

Tom V. wrote: Hi, I'm using gdal 1.4.2 to write out NITF and GeoTiff images. The createCopy() call takes only a few minutes to write out a small file, 300 or so mb's, but takes anywhere from 1.5-3 hours to write out a single band 1.2 gb NITF or GeoTiff. I have not tried a larger multi-spectral

[gdal-dev] Slow createCopy()

Hi, I'm using gdal 1.4.2 to write out NITF and GeoTiff images. The createCopy() call takes only a few minutes to write out a small file, 300 or so mb's, but takes anywhere from 1.5-3 hours to write out a single band 1.2 gb NITF or GeoTiff. I have not tried a larger multi-spectral image. The cal