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Any program that does "unsharp masking" will remove gradient more or less successfully..
However, it is better to move out of the city lights.. because any processing , including this quite innocent procedure, is actually, "doctoring" the data..
Also, the details, lost to light pollution background can not be retrieved by whatever method of processing you use.
Last edited by bojan; 05-07-2007 at 10:35 AM.
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