Digital BW, The Print

Costa and Daniel,

I see the incorrerct number of 75 in the line. I went back and 
started from square one and plugged in the densities again and it did 
generate a curve, but it is flat in the middle tones; and just not 
good for any printing. I just can't get the LAB VALUES to work in 
generating a curve. I missed out on another densitometer on eBay just 
a few minutes ago. That makes 8 I've tried to get with no success. 
I'll see if I can get access to the densitometer again this week with 
a fresh grayscale print that has not been tagged or worked up in 
PhotoShop or anything but the straight unadulterated file.--- In 
DigitalBlackandWhiteThePrint@yahoogroups.com, "ccolbertbw" 
<ccolbert@u...> wrote:
> 
> Johnny and Daniel too,
> 
> Roy's curve fitter does not do well if the curve is not monotonic- 
either up or down.
> Johnny's original values from the densitometer looked fine, but the 
new L values
> are not good because they have a big bump in the middle. This makes 
the curve fitting not 
> work at least in my hands.
> 
> You can take the scanned image and use the histogram in PS (Roy's 
suggestion) to read 
> out the values a bit more precisely - may not help if the scanner 
produced a poor curve.
> 
> Costa
> 
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Daniel Staver 
<daniel@p...> 
> wrote:
> > That's odd... Doesn't work for me either right now, but I tested 
this 
> > earlier and had no problems. I'll look into it, but probably 
won't have 
> > time until tomorrow.
> > 
> > --
> > Daniel Staver
> > http://daniel.staver.no
> > 
> > 
> > Johnny Eades wrote:
> > > 
> > > Daniel,
> > > 
> > > OOOPS! i GUESS IF i COULD READ I could get this thing right. 
> > > 
> > > 
> > > Well, I dropped out of this browser long enough to go and enter 
them 
> > > from HIGH to LOW as follows and still no curve was generated. 
The 
> > > Linerize line was added to the .qidf though. HHHMMMMMM? What 
did I do 
> > > wrong now, I wonder?
> > > 
> > > Still frustrated but still your friend in Photography,
> > > 
> > > Johnny
> > > 
> > > PRINTER=Quad1280
> > > CURVE_NAME=UT2-MY-HPhotoRag-neutral-2
> > > GRAPH_CURVE=YES
> > > N_OF_INKS=6
> > > DEFAULT_INK_LIMIT=45
> > > BOOST_K=55
> > > LIMIT_K=
> > > LIMIT_C=45
> > > LIMIT_M=45
> > > LIMIT_Y=0
> > > LIMIT_LC=45
> > > LIMIT_LM=40
> > > N_OF_GRAY_PARTS=3
> > > GRAY_INK_1=K
> > > GRAY_VAL_1=100
> > > GRAY_INK_2=M
> > > GRAY_VAL_2=50.5
> > > GRAY_INK_3=LM
> > > GRAY_VAL_3=17.2
> > > GRAY_HIGHLIGHT=4
> > > GRAY_SHADOW=8
> > > GRAY_OVERLAP=10
> > > GRAY_GAMMA=1
> > > GRAY_CURVE=
> > > N_OF_TONER_PARTS=2
> > > TONER_INK_1=C
> > > TONER_VAL_1=100
> > > TONER_INK_2=LC
> > > TONER_VAL_2=39
> > > TONER_HIGHLIGHT=0.5
> > > TONER_SHADOW=1
> > > TONER_GAMMA=1
> > > TONER_CURVE=
> > > N_OF_UNUSED=1
> > > UNUSED_INK_1=Y
> > > LINEARIZE="99 87 76 67 60 55 49 75 41 37 34 33 31 28 28 27 26 
25 21 16 
> > > 15 "