Digital BW, The Print

Hi Andrew,

The "sample" profiles are just approximate since I don't have those inks.
The best thing would be to have a densitometer and fill in the
LINEARIZE info.  But if you don't have one, the next best thing is to
just adjust some of the profile values to get closer to what you'd like.
The easiest is the parameter GRAY_GAMMA which by default is 1 but
you can increase it to lighten the print.  It works identically to the
Photoshop Adjust Levels command -- adjusting the middle slider
is a gamma adjustment.  

Print out a 21step wedge and then try one with GRAY_GAMMA=1.5
Then decide if you need more or less.   Another way is to take the
print and try to match the display to the print.  Use Adjust Levels
and vary the middle slider till the display matches the print. You'll
have a gamma value of say .75  -- just take the reciprical i.e. 1/x
and that's the correction value to put into GRAY_GAMMA. and redo
the profile.

Roy


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Andrew Brillliant 
<andy@b...> wrote:
> I have just started to use  Quadtone RIP on my 1160  with MIS FS 
> inks.......It works  pretty well.
> 
> Has anyone come up with a decent profile for  Epson Enhanced  Matte 
> paper yet?   I am getting a little too much ink in the darker areas.  I 
> have not had time to use the profiling  software included but it looks 
> like it will work.   There is probably a combination of the two 
> "sample" profiles provided that will do the trick.
> 
> I am also planning on using the John Wolfe Workflow solution with  the 
> Quadtone  RIP and see if I can combine the two.  That might seem a 
> little redundant but I can't take the time right now to come up with a 
> profile.
> 
> The Quadtone Rip and also  Gimp for  color printing seems to solve a 
> lot of the problems encountered when switching to OSX.
> 
> If you are like me and had every thing "hitting on all cylinders"  in 
> system 9 but were frustrated with all  the roadblocks in system 10 and 
> just went back to working in 9,   fear not,  the day is coming when OSX 
> will work as well.  I know that some  of you  are already doing that 
> after investing time and money on new solutions.
> 
> But for those of us who need to make prints without learning new work 
> flows every few months this period has been  rough and tumble.
> 
> I look forward to the coming months when easier and less costly 
> solutions appear.
> 
> 
> Andrew Brilliant
> 
> 
> www.brilliantpictures.com