Re: BCP or no BCP to epson without rip
Re: BCP or no BCP to epson without rip
- Subject: Re: BCP or no BCP to epson without rip
- From: Graeme Gill <email@hidden>
- Date: Thu, 11 Jun 2009 10:22:56 +1000
MARK SEGAL wrote:
I'm sure that you mean to make a valid point here, but so far it escapes me.
Properly done, RelCol + BPC *does* map source black to destination black.
That's not just a "fine theory". I've done it and seen the results
first-hand countless times.
The paragraph I responded to wasn't about RelCol + BPC, it was about
Perceptual without BPC. I quote again:
> Marco Ugolini wrote:
> > As for the Perceptual rendering intent, it is supposed always to map source black to
> > destination black. In that sense, BPC is redundant with Perceptual.
> > ... properly-made output profile will always scale
> > source black to destination black in the Perceptual rendering intent.
Would you please care to bring up a practical example, detailed and
repeatable, that illustrates your point in terms that we can all understand?
I hardly think a practical example is necessary, - it's logically
impossible to construct a destination profile that contains
fixed transforms (B2A tables) that can transform a range of
unknown at the time of destination profile creation source colorspace
black points to the destination black point.
Again, I have no great interest in points of theory made without concrete
examples which back them up.
The very use of BPC by many people is example enough !
Graeme Gill.
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