Thursday, August 12, 2010

Smoother Pyramid Layers

So yesterday I was working with a couple of 1-band raster images. The original images looked fine but my processed ones looked pixelated when zoomed out.

The problem was that the pyramid layers were built using nearest neighbor (the default). I didn't see where to change that in ArcMap or IMAGINE right away, so I solved the problem with gdaladdo.

gdaladdo --config HFA_USE_RRD YES -r average all_utm.img 4 8 16 32 64 128 256 512

I later found the correct settings in ArcMap 10, but still have no idea where they are in IMAGINE 2010.

Pyramid options are in the Environment Settings in ArcMap 10

And here's what my final output looks like:

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