kansalliskala
Joined: 19 Jul 2007
Posts: 5039
Location: Southern Finland countryside
Expire: 2016-12-30
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 Posted: Wed Feb 19, 2014 4:25 pm Post subject: Pixel count, scaling and image quality |
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kansalliskala wrote:
Open question: suggest anything?
What is the effect of pixel count to a scaled image, say if you scale the image from 2000x3000 or 4000x6000 picture to 600x900 picture?
(this could also be in 'digital darkroom' but I think sensor technology has also something to do with this?)
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NikonAIS
Joined: 23 Mar 2014
Posts: 227
Location: Pawleys Island, SC, US
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| Posted: Thu Apr 03, 2014 11:10 pm Post subject: |
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NikonAIS wrote:
When you scale up or down in image size the program you use be it Photoshop, LightRoom, etc, interpolates the image pixels. Loss of IQ is most pronounced when you scale up, but you will lose sharpness going down too. When I scale a 100% RAW image to something smaller, I use the "Smart Sharpen" tool in Photoshop to make up for the IQ loss.
There is a software program called "General Fractals" which is supposed to basically let you up scale any image to billboard size with no loss in IQ but I have not really looked it. I am skeptical of their claims but cannot say one way or the other because I have never used it.
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