Digital BW, The Print

Ok, Im stupid : it's only if and when I used inadvertably relative 
instead of perceptual that this occured (I use rela(tive for color 
and have left it... no comment). 

Sorry to have bothered.

Olivier

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale 
<stevekale@...> wrote:
>
> So you start with, say, a GG2.2 image file that has pure black in 
it when
> looking at the histogram.  You then convert to a QTR ICC profile, 
say one
> you made for HPR, and then you look at the histogram again and your 
black
> point is not pure black?  That can't be because pixel value 0 is not
> affected by the transform in the profile - it stays at 0 and is 
sent to the
> printer at which point it produces maximum black.
>