> don't you just have to introduce a range model of the media being proofed
?

Hi Graeme, neat idea. And while I was trying to implement that, I found a
solution that seems simpler to me.

What about a function like that:

cmsBool cmsAllowUnboundedMode(cmsHPROFILE hProfile, cmsBool on)


So, the user could turn on/off the unbounded processing per-profile basis.
Then, soft proofing would always turn off unbounded mode of proofed profile.
if you want to gamut check in unbounded mode, you could still roundtrip the
profile by using multiprofile transforms.  

Doing that means a change on the behavior of standard softproofing, but this
is just what we intend for, right? and the CMM grows in one interesting
feature.

Thoughts?

Marti Maria
The LittleCMS project
http://www.littlecms.com 

-----Original Message-----
From: Graeme Gill [mailto:gra...@argyllcms.com] 
Sent: viernes, 12 de agosto de 2016 2:23
To: LCMS mailing list <lcms-user@lists.sourceforge.net>
Subject: Re: [Lcms-user] Soft proofing problems when the destination profile
supports unbounded profile conversions

Marti Maria wrote:

> Anybody else on that? I would like to know what lcms users  think and 
> eventually modify the behavior for next release.

Hi Marti,
        don't you just have to introduce a range model of the media being
proofed ?

For (say) printed media, the corresponding model would clip the CMYK value
to the range 0.0 - 1.0. For some other media (i.e. your hypothetical file
format), the appropriate range would be enforced.

Bonus points for the range model emitting a meta-channel flagging out of
gamut values.

Cheers,

Graeme.


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