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autocorrelation routine... [message #14572] Mon, 08 March 1999 00:00
Tracy Beck is currently offline  Tracy Beck
Messages: 1
Registered: March 1999
Junior Member
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hi,
<P>i am just wondering if anyone knows how to do an autocorrelation (much
like the A_CORRELATE procedure for vectors) on a 2-D image array?
<P>i have tried writing my own routine using the fft procedure, but the
array that i get back is complex and i am fairly certain i am having problems
with symmetries.
<P>any help would be *much* appreciated!
<P>thanks,
<P>tracy
<PRE>--&nbsp;
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Tracy Beck&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n bsp;&nbsp;&nbsp;
Astronomy Group, SUNY Stony Brook&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;& nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;& nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
email:&nbsp; tracy@hilo.ess.sunysb.edu &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;
<A HREF="http://www.ess.sunysb.edu/~tracy/plan.html">http://www.ess.sunysb.edu/~tracy/plan.html</A> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;
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