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Re: Zoom-like procedure [message #25931]

Sat, 28 July 2001 15:55

Bob Fugate
Messages: 18
Registered: March 2001

Junior Member

Craig,
You are right. However, it appears one must also add the keyword SAMPLE or
all but the last row of the enlarged pixels will contain a number of
gradient levels proportional to the dimensions of the array being expanded.
The first time I tried this I had the scale factors wrong -- not integer
multiples of the dimensions of the array and I didn't use the sample
keyword.
Thanks, again for your help. This solves my problem.

Bob

>
> Bob,
>
> Isn't this exactly what REBIN does? It replicates pixels. The value
> of this BLOWUP:
>
> blowup = rebin(img(0:15,0:15), 16*nscale, 16*nscale)
>
> is a new array with NSCALE times as many pixels in each direction as
> the original 16x16 subimage. Then of course you have to TV it onto
> the screen. :-)
>
> Craig
>
> --
> ------------------------------------------------------------ --------------
> Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
> Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
> ------------------------------------------------------------ --------------

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		Re: Zoom-like procedure By: Bob Fugate on Sat, 28 July 2001 15:55
		Re: Zoom-like procedure By: Craig Markwardt on Sat, 28 July 2001 13:06

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