Re: [APML] Reflecting on Cygnus

[Chuck Vaughn <aa6g@aa6g.org>]

Hi Jerry,

Yes, I know there can be a big difference between color spaces. All  
I'm asking Rob is which way is he intending people to view his  
images, with the profile applied, or not. I asked him to perform that  
test so he could see what a big difference there was. At least I  
hoped he could see it.

With more of us going to new and brighter LCD displays, the  
difference in the display gamut and sRGB is much larger than it was  
between a typical monitor and sRGB. The difference I see here is  
huge. I believe he has a new display himself and it was after he was  
using it that his images looked much different. The difference is  
mainly in brightness and not hue.

Chuck

----------------------------------------------

>
> Hi Chuck,
>
> If the image was meant to be displayed on a web page, then it's  
> probably going to be displayed without the profile being applied,  
> with an exception for Safari on a Mac (I think), so 99 percent of  
> the people who look at it won't see the profile applied.
>
> But, there shouldn't be that much difference between having an sRGB  
> profile applied and not having an sRGB profile applied on an  
> average monitor, even in Safari. IF you have a monitor that is not  
> going bad and if you have it correcly calibrated, and if you have  
> your color management set up correctly (not only in Photoshop, but  
> on the OS level, depending on your OS).
>
> You're throwing a monkeywrench into the works though by viewing it  
> in Photoshop because when you view it without the profile applied  
> in PS, it is going to display it in Photoshop's working color  
> space, which you may have set to something like Adobe, which will  
> significantly change the display because you are essentially  
> displaying it with the wrong profile.
>
> You could change Photoshop's working color space to a wide variety  
> of choices, and each time the image would look different. Sometimes  
> radically different, such as if you chose Wide-Gamut RGB.
>
> What you're doing in your example is essentially assigning the  
> wrong color space profile to the image if your working color space  
> in Photoshop is set to anything except sRGB.
>
> Your example is intentionally mis-using color management, so it's  
> no surprise that you would see quite a difference.
>
> Jerry
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