On 21 Apr 2006 at 20:25, Godfrey DiGiorgi wrote:

> 
> On Apr 21, 2006, at 8:14 PM, Rob Studdert wrote:
> 
> > On 21 Apr 2006 at 19:41, Godfrey DiGiorgi wrote:
> >
> >> The results were surprising, and quite conclusive. Consistency of
> >> rendering was always enhanced when an ICC profile was embedded. For a
> >> measly couple of  worth of data, particularly when some folks want to
> >> post 200Kbyte image files for people to browse, I don't understand
> >> the big deal about embedding them. If they're truly ignored by all
> >> but the very few applications, why not? It doesn't hurt anything and
> >> even at 28.8Kbps dialup speeds would only add 2-3 seconds per image
> >> to download. Crap that isn't color management sensitive, like all the
> >> stupid dancing whirlygigs and other nonsense that people embellish
> >> their sites with, don't have to worry about it. (I often turn the
> >> browser display of graphics off when I see that crap anyway.)
> >
> > Enhanced? It either works or it doesn't work. It's as easy to prove  
> > whether it
> > does on not by simply displaying an Adobe RGB formatted and ICC  
> > embedded image
> > on any windows browser. Inevitably the image will be rendered  
> > obviously non-
> > colour managed.
> 
> Perhaps you don't understand. The images were set to be in sRGB  
> colorspace. Each image was saved with and without an sRGB ICC embedded.
> 
> I said, again, 'the consistency of the rendering was enhanced when an  
> ICC profile was embedded'. On both platforms (Mac OS X and Windows  
> XP), in 8 different browsers we saw the same things. It was  
> measurable. That's what we were looking to test for, to see if there  
> was an observable difference in the consistency of rendering, not  
> whether the browsers would read alternative colorspace profiles.
> 
> > Send me the images that you and your associate tested to derive  
> > your results
> > and I'll use my screen colorimeter to test them and report back.
> 
> Sorry, the tests were done three years ago ... I'm pretty sure I  
> still have the files and data somewhere, but a quick search hasn't  
> brought them up. They're probably in one of my system archives as  
> they weren't a part of my regular photo work, just some testing for  
> web display.

Maybe you could use my test images:

http://home.swiftdsl.com.au/~distudio/temp/ICC_test.html


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http:/home.swiftdsl.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998

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