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Re: filmscanners: Infrared scan



In a message dated 6/9/2001 6:18:40 AM EST, harper@wordweb.com writes:

> I just tried scanning a slide and outputting a colour TIFF and an IR one.
>  It was very educational.  Any sort of mark, scratch or dust spot is utterly
>  black in the IR scan.

If you look closer, you'll see that the dust spots aren't pure black,
but instead are just quite dark.

>  Some of the image is also visible as is some of the
>  grain, which probably explains why the image is softened by ICE.

No, this has nothing to do with the softening in the ICE
algorithm.  This is just a flaw in the algorithm (it does
unnecessary smoothing).

Regards,
Ed Hamrick




 




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