David-- I believe the "GRAY_CURVE" command is limited to 16 pairs of numbers. It appears you have 20. I'm also not sure you're calculating the "GRAY_CURVE" values correctly. What is your actual measured data? With the modified qdensity file, why not just put the measured values into the LINEARIZE field? --Greg --- In QuadtoneRIP@yahoogroups.com, 228044881 228044881 <cheesecraft@...> wrote: > > This is the one I am using with a grey curve. > > > For carbon printing with 19g black paint pigment, 1g mixol brown or 1g violet watercolour paint. 16ml 5% Ammonium Dichromate per A3 sheet. 160 Units at 10 degrees centigrade or about 45 minute exposure on a Nuarc 40-1K. > > > PRINTER=QuadR2880 > CURVE_NAME=MKY3070Curve45percent10C160U > GRAPH_CURVE=YES > N_OF_INKS=8 > DEFAULT_INK_LIMIT=100 > BOOST_K= > LIMIT_K=30 > LIMIT_C= > LIMIT_M= > LIMIT_Y=70 > LIMIT_LC= > LIMIT_LM= > LIMIT_LK= > LIMIT_LLK= > N_OF_GRAY_PARTS=0 > GRAY_HIGHLIGHT=10 > GRAY_SHADOW=10 > GRAY_OVERLAP= > GRAY_GAMMA=1 > GRAY_CURVE= > N_OF_TONER_PARTS=0 > TONER_HIGHLIGHT=10 > TONER_SHADOW=10 > TONER_GAMMA=1 > TONER_CURVE= > N_OF_TONER_2_PARTS=0 > TONER_2_HIGHLIGHT=10 > TONER_2_SHADOW=10 > TONER_2_GAMMA=1 > TONER_2_CURVE= > N_OF_UNUSED=6 > UNUSED_INK_1=C > UNUSED_INK_2=M > UNUSED_INK_3=LC > UNUSED_INK_4=LM > UNUSED_INK_5=LK > UNUSED_INK_6=LLK > CURVE_K="0;0 1.7;5 4.73;10 8.95;15 13.54;20 19.84;25 27.19;30 34.03;35 42.64;40 50.87;45 59.98;50 67.8713;55 76.54;60 84.34;65 90.42;70 95.03;75 97.87;80 98.9;85 99.53;90 100;100 "" > COPY_CURVE_Y=K > > > > > ________________________________ > From: kumagaikentaro <homepage@...> > To: QuadtoneRIP@yahoogroups.com > Sent: Sunday, 24 June 2012 9:48 PM > Subject: [QuadtoneRIP] Re: "starter profiles" for digital negatives > > >  > Mr,David > > Please show me your profile details. > > Kentaro Kumagai > > --- In QuadtoneRIP@yahoogroups.com, 228044881 228044881 <cheesecraft@> wrote: > > > > I amàstill getting the same error message when I click the "show curve" tab. Invalid coordinates at quadprofile.pl line 41, Curve creation failed. I have reinstalled QTR, tried and then also replaced the qdensity file with the supplied file. Still same error. > > > > > > David > > > > > > > > ________________________________ > > From: gmikol <gmikol@> > > To: QuadtoneRIP@yahoogroups.com > > Sent: Sunday, 24 June 2012 5:23 PM > > Subject: [QuadtoneRIP] Re: "starter profiles" for digital negatives > > > > > > à> > I just tested the file that Kentaro Kumagai linked to, and it works as expected on QTR 2.7.2. > > > > Mr. Kumagai...Thank you for providing this link...it eliminates one step in processing digital negative curves.. I look forward to Roy making a general release. > > > > David...you should try this again. It really does work. And the workaround is simpler than you describe...you can transform the measured L* data similar to how Ron describes, and paste it into QTR, and it works. That's what I had been doing. > > > > --Greg > > > > --- In QuadtoneRIP@yahoogroups.com, 228044881 228044881 <cheesecraft@> wrote: > > > > > > ÃâàI believe I got that file from Roy some time ago and also have upgraded to 2.7.2 but when I last pasted a set of L* measurements into the linearisation tab I still was getting an error message from viewing the ink curves. Anyway, the workaround is very simple, normalise them to % figures and turn them into negative values using Ron Reeders instructions for scanner data, then use them as a greycurve. > > > > > > > > > Oneday it will all work, I am shure, and that will be fantastic because there is no simpler way of making digital negatives. Print a wedge, read with i1 and colour port, dump file on linearisation tab. Done. > > > > > > Thanks > > > David > > > > > > > > > > > > ________________________________ > > > From: kumagaikentaro <homepage@> > > > To: QuadtoneRIP@yahoogroups.com > > > Sent: Sunday, 24 June 2012 1:02 PM > > > Subject: [QuadtoneRIP] Re: "starter profiles" for digital negatives > > > > > > > > > Ãâà> > > Mr Greg > > > > > > Are you using Windows QTR? > > > It is correspondence of only Mac QTR (Ver,2.72). > > > I have fixed patch for Win QTR. It was given by Roy. > > > Please download. And please overwrite. > > > > > > http://www.digital-negatives.jp/TEST/qdensity.zip > > > > > > About Digital-Negatives Linearization > > > > > > Step1: > > > Measurement the density of a print. > > > > > > Step2: > > > Please input in an order from a small numerical value. > > > Example > > > LINEARIZE="8 9 12 ..." > > > > > > Ron said that WinQTR Digital-Nega Linearization was also corrected by next program update. > > > > > > Please try this. > > > > > > Kentaro Kumagai > > > http://www..digital-negatives.jp/ > > > > > > --- In QuadtoneRIP@yahoogroups.com, "gmikol" <gmikol@> wrote: > > > > > > > > I just want to note that the profile included below does not work properly...QTRgui throws an error because the linearization data is in the wrong order (for L* data, it must be from highest to lowest values, i.e. paper white to dmax). > > > > > > > > One must be careful when using the LINEARIZATION command with digital negatives. The measurement data has to be manipulated in order for QTR to use it properly. There is no way (that I have found) that using the straight measurement data will yield a linearized negative. > > > > > > > > --Greg > > > > > > > > > > > > --- In QuadtoneRIP@yahoogroups.com, "kumagaikentaro" <homepage@> wrote: > > > > > > > > > > I tried this. > > > > > However, there is also a problem. > > > > > It is the printing quality of QuadToneRIP. > > > > > It seems that processing of micro weaving is not good. > > > > > > > > > > > > > > > Printer:EPSON R2880 > > > > > Paper:ILFORD MG 4 FB Gloss > > > > > Light source:Focomat No Filter > > > > > Film:Pictorico TPS-100 > > > > > > > > > > Print setting: > > > > > Resolution:1440-1440 Super > > > > > Uni-directional > > > > > Adaptive-Hyblid > > > > > > > > > > > > > > > see also (Japanese) > > > > > http://www.digital-negatives.jp/bb/phpBB3/viewtopic.php?f=16&t=35 > > > > > > > > > > > > > > > PRINTER=QuadR2880 > > > > > CURVE_NAME=Silver_4Sec_1440dpiS_AH_Linea > > > > > GRAPH_CURVE=YES > > > > > N_OF_INKS=8 > > > > > DEFAULT_INK_LIMIT=100 > > > > > BOOST_K=85 > > > > > LIMIT_K= > > > > > LIMIT_C=2 > > > > > LIMIT_M=4 > > > > > LIMIT_Y=45 > > > > > LIMIT_LC=5 > > > > > LIMIT_LM=5 > > > > > LIMIT_LK= > > > > > LIMIT_LLK= > > > > > N_OF_GRAY_PARTS=3 > > > > > GRAY_INK_1=K > > > > > GRAY_VAL_1=100 > > > > > GRAY_INK_2=LK > > > > > GRAY_VAL_2=48 > > > > > GRAY_INK_3=LLK > > > > > GRAY_VAL_3=11 > > > > > GRAY_HIGHLIGHT=6 > > > > > GRAY_SHADOW=6 > > > > > GRAY_OVERLAP= > > > > > GRAY_GAMMA=1 > > > > > GRAY_CURVE= > > > > > N_OF_TONER_PARTS=1 > > > > > TONER_INK_1=Y > > > > > TONER_VAL_1=100 > > > > > TONER_HIGHLIGHT=0 > > > > > TONER_SHADOW=0 > > > > > TONER_GAMMA=1 > > > > > TONER_CURVE= > > > > > N_OF_TONER_2_PARTS=0 > > > > > TONER_2_HIGHLIGHT=10 > > > > > TONER_2_SHADOW=10 > > > > > TONER_2_GAMMA=1 > > > > > TONER_2_CURVE= > > > > > N_OF_UNUSED=4 > > > > > UNUSED_INK_1=C > > > > > UNUSED_INK_2=M > > > > > UNUSED_INK_3=LC > > > > > UNUSED_INK_4=LM > > > > > LINEARIZE="8.677668 9.799407 12.558486 15..964257 20.611595 25.829237 30.251215 34.221497 37.851635 42.421867 48.068001 53.247597 57.78688 63.395672 68.780212 73.346542 78.760872 84.385475 89.804161 93.293114 95.059952 " > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > [Non-text portions of this message have been removed] >
Message
Re: "starter profiles" for digital negatives
2012-06-24 by gmikol