Mike Harrison wrote: > Why would anyone use floating point for image rescaling...? For lots of good reasons. On many modern computers, floating point is not much slower than interger operations, and is a obvious easy way to get a essentially continuous brightness space with overflow and underflow handled= .. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .