Re: background neutrals for optimal viewing conditions
Re: background neutrals for optimal viewing conditions
- Subject: Re: background neutrals for optimal viewing conditions
- From: Roger Breton <email@hidden>
- Date: Mon, 30 Jun 2008 10:50:09 -0400
Edward,
This is a very interesting question. In general, I believe an L*=50
equivalent would be best to avoid any unforeseen adaptation issues.
It seems to be the way it is harcoded in Photoshop -- haven't found the
interface to change that parameter yet?
I know some people advocate using a 1 inch white border around images to
help set the chromatic adaptation to the monitor's white point, however it
is managed. And I agree this trick makes sense when softproofing against a
hardcopy proof, viewed under a light booth of some kind.
But if I'm worried about the effect such a high brightness stimulus around
an image has on our adaptation. As you know, all movies are gamma-corrected
to compensate for the fact that theaters are rather dark places to view
images and, apparently (it's been demonstrated scientifically), the visual
systems respond with a decrease in perceived contrast in those environments.
So, to me, viewing images with a white border around it would tend to
artificially increase an image perceived contrast.
That's my take (I hope I don't have this reverse).
At any rate, I suspect this is a relatively easy effect to test using the
same image viewed side by side (assuming uniform Luminance and chromaticity
across the screen) in two document windows in Photoshop, setup to different
borders. You can try black and white first (the two extremes) and then gray.
Roger Breton
> does anyone have experience with or opinions about the selection
> of a neutral for use as background fill of a window? or: how should
> the background be tweaked to attain optimal viewing of photos/images
> of different type under different conditions?
>
> any suggestions/favorites (lab or tagged rgb coordinates) paired with
> scenario greatly appreciated.
>
>
> thanks in advance,
> edward taffel
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