Re: "Hot Pixels" are they an issue....
Re: "Hot Pixels" are they an issue....
- Subject: Re: "Hot Pixels" are they an issue....
- From: "Steve" <email@hidden (nospam)>
- Date: Mon, 26 Jan 2004 19:44:16 -0500
----- Original Message -----
From: "Douglas Rhiner" <email@hidden>
To: <email@hidden>
Sent: Monday, January 26, 2004 04:09 PM
Subject: "Hot Pixels" are they an issue....
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Both traditional and astro photographers have been using a technique to
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remove "hot pixels"(Taking an image with the lens cap on and
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subtracting it from subsequent images in Photoshop) from their images.
Hot(always on: white) and cold(always off: black) pixels are always an
issue...
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First off, is this an issue with any film scanners(in broad terms,
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specific if you wish)?
Yes, in broad terms...
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I.e. would I benefit from applying said technique to my scans?
Possibly. Only testing will tell...
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Second, what would be the theoretical best material to scan(something
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infinitely black that does not transmit or reflect light)if I were to
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play with this? I realize there are many scanners/methodologies out
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there, so lets think in broad terms both in transmissive and reflective
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terms.
Scan anything that's opaque(doesn't transmit light)...
HTH
email@hidden
>
Sorry if this is not exactly color related, but I could not think of a
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better group to run this by......
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>
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Douglas Rhiner
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Technical Director / Owner
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HIGH MOUNTAIN IMAGERY / IMAGE TAHOE / TAHOE VR
>
>
(530) 546-0413 [office]
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(530) 362-0047 [cell]
>
>
http://www.hmitahoe.com
>
http://www.imagetahoe.com
>
http://www.tahoevr.com
>
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