zeroes(21600,10800) works for me. Are you on 32-bit OS? Then use 64-bit. If your data is going to finish as 8 bits per channel image anyway, then work with byte piddles.

P.S. BTW, you understand, that your image will be 700 MB (uncompressed), don't you?

In reply to Re^7: Interpolating data using pdl by vr
in thread Interpolating data using pdl by karthik248

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