Datacolor User to User Support Group.

Intent is chosen at time of use, as you thought. The profile is built  
with multiple intents available for selection later.

C. D. Tobie
WW Product Technology Mngr.
Digital Imaging & Home Theater
DataColor.com
CDTobie@...

On Nov 8, 2008, at 4:30 PM, "John Arnold" <john.arnold@...>  
wrote:

> --- In colorvision_group@yahoogroups.com, David Miller <dm2363@...>  
> wrote:
>>
>>
>
>> The way that we build the profile, as far as the Saturation rendering
>> intent goes,
>> is different than most other 3rd party and OEM profiles. They put  
>> data
>> in their Saturation
>> intent that's intended to boost colors for business graphics and line
>> art, but which isn't
>> generally well suited for printing photographic images.
>>
>> In our profiles, we use a different philosophy for the Saturation
>> intent. For photographic
>> images (where the colors are all, or mostly, inside the printer
>> gamut), the data in our
>> Saturation intent makes beautiful prints, so it's perfectly well
>> suited for general
>> photographic printing. For out-of-gamut colors, the Saturation intent
>> pushes the print
>> towards the most saturated colors that the printer driver/paper
>> setting/inkset can
>> produce. This means that you get the best possible saturation in your
>> print for out-of-gamut
>> colors, with little or no mixing of other color inks (yellow, for
>> instance, will print with
>> pure yellow ink, and blue will print with the maximum blue ink  
>> mixture
>> that the driver
>> produces based on your paper type setting). For most people, this
>> yields the best results,
>> and that's why we recommend it as the "default" rendering intent with
>> our profiles.
>>
>> If you like, you can choose either the Perceptual or Relative
>> Colorimetric rendering intents
>> as well, which provide some color mixing for the out of gamut colors
>> to make the printed
>> hues more exact, at some expense of saturation.
>
> David,
>
> Thank you. Your responses are very informative. I am a bit confused  
> on one point though.
> I am used to choosing the rendering intent in Photoshop. But it  
> appears that the rendering
> intent is actually chosen with the Spyder system at the time of  
> profile generation? I
> probably have it turned around in my head. But I thought the profile  
> had to contain all
> possible rendering intents so that you could choose which one you  
> want in Photoshop and
> then the profile would apply it at the time of passing the  
> information along to the printer.
> Can you please clarify?
>
> Thank you.
>
> John
>
>
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