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Re: Can I do this without using loops? [message #6322 is a reply to message #6321]

Wed, 05 June 1996 00:00

peter
Messages: 80
Registered: February 1994

Member

Peter Clinch (p.j.clinch@dundee.ac.uk) wrote:
: Can't quite see how, but I have a feeling there's a Better Way...

: I have a couple of images, same size, and I need to compare the two and
: take a result which has the highest value from either of the inputs. Ay
: the mo. I'm just using loops through all the pixels using an if greater
: than comparison, and it takes ages... :(

result = a > b

will place the greater of a and b in result, on a pixel=by-pixel basis.

Even if the > function didn't exist, the following would do it without
loops

test = a gt b
result = a*test + b*(1-test)

Peter

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[Message index]

		Re: Can I do this without using loops? By: bowman on Sat, 08 June 1996 00:00
		Re: Can I do this without using loops? By: santanu on Sat, 08 June 1996 00:00
		Re: Can I do this without using loops? By: Bruce E Thomason on Thu, 06 June 1996 00:00
		Re: Can I do this without using loops? By: rivers on Wed, 05 June 1996 00:00
		Re: Can I do this without using loops? By: peter on Wed, 05 June 1996 00:00

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