Yahoo Groups archive

QTR-Quadtone RIP

Index last updated: 2026-04-28 23:12 UTC

Message

Re: Lab values not in order. Cannot ...

2008-02-03 by dmwket

Michael,
thanks for clarifiying about the order in which the samples are to be read.
There is a file (QTR-21X4-Random) in the EyeOne folder that shows the A1-4 then B1-4 
order. That is what I based my comment on, so its good to know that either way works. 

I'm also glad that the other information was useful. It's nice to have repaid a bit of the 
help I've received via this and other photography fora.

David


--- In QuadtoneRIP@yahoogroups.com, "michaelrosensf" <Michael@...> wrote:
>
> David,
> 
> Thank you!!
> 
> The mystery is solved. I find that what's required to use the 21x4 random patches are
> 
> 1. Version 2.5 of Create-ICC  (I used 2.5.1.0). My 2.4.3 version doesn't work for the 
> random patches with any file format I've tried. Note that the date/time stamp is the 
same, 
> but the program size is different; 2.5 is a different program from 2.4.
> 
> 2. A tab delimited file, like the one in David's post. Playing with Spyder3Print, I checked 
> "QTR Format Override" and "CreateICC" which gives a different format that happens to 
> work with the not random 21 step file. In Spyder3Print, checking "Lab" and "Include Line 
> Numbers" produces a tab delimited file that looks like the one David posted and works. 
> The Eye One's options and defaults are surely different.
> 
> Also, I have found that it doesn't matter whether the patches are read down-then-
across 
> or across-then-down. 
> 
> Michael
> 
> --- In QuadtoneRIP@yahoogroups.com, "dmwket" <dmw@> wrote:
> >
> > --- In QuadtoneRIP@yahoogroups.com, odda <odda57@> wrote:
> > >
> > > Forgive me if this has been convered; I did not peruse
> > > the entire thread. 
> > > The QTR-Linearize-Data/QTR-Create-ICC will only work
> > > (in my experience) on LAB data, exported from Gretag
> > > Macbeth Measure Tool.
> > > Again; I am sorry if that issue was put to bed...
> > > 
> > > 
> > >       
> 
> > I have made numerous ICC and curves using data read by the ColorVision 
spectrometer 
> > using Spyder Print 3 for reading the files. I use the 21 step times 4 random image for 
> > reading the data. It is important that the data be read vertically from left to right. That 
> is, 
> > Col 30 top to bottom, then Col 70 top to bottom, then Col 5 etc to end of image on 
the 
> > right.
> > 
> > Here is what the resulting text file looks like:
> > 
> > 1	76.41	2.37	-5.95
> > 2	24.51	1.12	-2.80
> > 3	76.53	2.37	-5.85
> > 4	24.56	1.08	-2.84
> > 5	46.46	1.11	-3.12
> > 6	57.57	1.59	-4.69
> > 7	46.94	1.13	-3.18
> > 8	57.67	1.58	-4.75
> > 9	92.42	2.77	-6.84
> > 10	86.58	2.71	-6.62
> > 11	92.50	2.81	-6.77
> > 12	86.56	2.72	-6.65
> > 13	65.19	1.89	-5.24
> > 14	38.81	1.24	-1.57
> > 15	65.55	1.98	-5.10
> > 16	38.88	1.27	-1.61
> > 17	34.18	1.29	-1.15
> > 18	69.38	2.13	-5.29
> > 19	34.39	1.31	-1.09
> > 20	69.14	2.13	-5.34
> > 21	83.42	2.54	-6.44
> > 22	94.66	2.82	-6.85
> > 23	83.41	2.57	-6.44
> > 24	94.70	2.85	-6.93
> > 25	53.40	1.37	-4.27
> > 26	50.18	1.25	-3.69
> > 27	53.81	1.40	-4.35
> > 28	50.28	1.24	-3.74
> > 29	18.29	0.76	-2.52
> > 30	80.59	2.57	-6.11
> > 31	18.77	0.93	-2.73
> > 32	80.37	2.53	-6.11
> > 33	72.83	2.31	-5.51
> > 34	30.24	1.36	-1.62
> > 35	73.18	2.31	-5.52
> > 36	30.37	1.33	-1.68
> > 37	42.73	1.15	-2.18
> > 38	61.39	1.80	-4.85
> > 39	43.08	1.17	-2.21
> > 40	61.50	1.84	-4.90
> > 41	89.63	2.77	-6.75
> > 42	89.70	2.78	-6.78
> > 43	89.74	2.75	-6.76
> > 44	89.64	2.75	-6.78
> > 45	61.62	1.81	-4.97
> > 46	43.25	1.19	-2.13
> > 47	61.85	1.88	-4.95
> > 48	43.24	1.16	-2.22
> > 49	30.17	1.37	-1.78
> > 50	73.00	2.29	-5.62
> > 51	30.41	1.38	-1.78
> > 52	72.87	2.29	-5.58
> > 53	80.37	2.53	-6.21
> > 54	18.28	1.00	-2.37
> > 55	80.49	2.54	-6.14
> > 56	18.36	0.92	-2.44
> > 57	50.12	1.21	-3.76
> > 58	54.01	1.43	-4.27
> > 59	50.82	1.28	-3.79
> > 60	54.21	1.41	-4.37
> > 61	94.67	2.82	-6.81
> > 62	83.29	2.59	-6.42
> > 63	94.72	2.83	-6.82
> > 64	83.33	2.62	-6.51
> > 65	68.89	2.15	-5.47
> > 66	34.20	1.42	-1.29
> > 67	69.13	2.16	-5.34
> > 68	34.35	1.36	-1.43
> > 69	38.80	1.24	-1.58
> > 70	65.68	1.98	-5.05
> > 71	39.10	1.30	-1.64
> > 72	65.66	1.96	-5.11
> > 73	86.58	2.66	-6.64
> > 74	92.48	2.76	-6.78
> > 75	86.59	2.69	-6.58
> > 76	92.35	2.78	-6.83
> > 77	57.47	1.54	-4.69
> > 78	47.01	1.17	-2.95
> > 79	57.96	1.66	-4.66
> > 80	47.25	1.15	-3.06
> > 81	25.80	1.13	-2.76
> > 82	76.87	2.40	-5.69
> > 83	25.56	1.22	-2.27
> > 84	76.66	2.35	-5.78
> > 
> > The text file, dropped onto the linearization droplet creates this file:
> > 
> > QTR-Linearize-Data version 2.5.1.0
> > File: /Users/DMWMBP/Desktop/QTR-Curves/MCL-12708-214-R-out.txt
> > Step	Dens	Lab	A	B	
> > 0.00	0.061	94.69	2.83	-6.85	- b                           |          a              L   +
> > 5.00	0.088	92.44	2.78	-6.80	- b                           |          a             L    +
> > 10.00	0.121	89.68	2.76	-6.77	- b                           |          a           L      +
> > 15.00	0.160	86.58	2.70	-6.62	-  b                          |         a          L        +
> > 20.00	0.202	83.36	2.58	-6.45	-   b                         |         a         L         +
> > 25.00	0.241	80.45	2.54	-6.14	-    b                        |         a       L           +
> > 30.00	0.293	76.62	2.37	-5.82	-     b                       |        a     L              +
> > 35.00	0.346	72.97	2.30	-5.56	-      b                      |        a   L                +
> > 40.00	0.403	69.13	2.14	-5.36	-       b                     |       a  L                  +
> > 45.00	0.460	65.52	1.95	-5.12	-        b                    |      a L                    +
> > 50.00	0.524	61.59	1.83	-4.92	-         b                   |     La                      +
> > 55.00	0.591	57.67	1.59	-4.70	-          b                  |   L a                       +
> > 60.00	0.661	53.86	1.40	-4.31	-           b                 | L  a                        +
> > 65.00	0.728	50.35	1.25	-3.75	-              b              L   a                         +
> > 70.00	0.797	46.91	1.14	-3.08	-                b          L |   a                         +
> > 75.00	0.879	43.07	1.17	-2.19	-                    b   L    |   a                         +
> > 80.00	0.975	38.90	1.26	-1.60	-                      b      |    a                        +
> > 85.00	1.089	34.28	1.34	-1.24	-                   L    b    |    a                        +
> > 90.00	1.197	30.30	1.36	-1.72	-                 L    b      |    a                        +
> > 95.00	1.352	25.11	1.14	-2.67	-              L   b          |   a                         +
> > 100.00	1.583	18.42	0.90	-2.51	-          L       b          |  a                          +
> > 
> > LINEARIZE="94.6875 92.4375 89.6775 86.5775 83.3625 80.455 76.6175 72.97 
> 69.135 
> > 65.52 61.59 57.6675 53.8575 50.35 46.915 43.075 38.8975 34.28 30.2975 
25.1075 
> > 18.425"
> > 
> > I then cut and paste the LINEARIZE line to create the curve file:
> > #
> > #  quadtone curve descriptor file
> > #
> > #
> > # the printer name
> > # the curve name
> > #   no spaces or special characters, except - or _  (dash or underscore)
> > #
> > CALIBRATION=NO
> > GRAPH_CURVE=NO
> > 
> > #
> > # number of inks must be 4, 6, or 7
> > # the ink limits are percentages
> > #   usually they are all the same but they can be individually set
> > #
> > N_OF_INKS=7
> > DEFAULT_INK_LIMIT=100
> > 
> > LIMIT_K=0
> > BOOST_K=
> > LIMIT_C=0
> > LIMIT_M=0
> > LIMIT_Y=0
> > LIMIT_LC=25
> > LIMIT_LM=25
> > LIMIT_LK=
> > 
> > #
> > #  Describe Usage of each Ink: K,C,M,Y,LC,LM,LK
> > #    All Inks of Printer must be listed
> > #
> > 
> > #
> > # Gray Partitioning Information
> > #
> > N_OF_GRAY_PARTS=2
> > GRAY_INK_1=K
> > GRAY_VAL_1=100
> > 
> > GRAY_INK_2=LK
> > GRAY_VAL_2=100
> > 
> > GRAY_INK_3=
> > GRAY_VAL_3=
> > 
> > GRAY_INK_4=
> > GRAY_VAL_4=
> > 
> > GRAY_INK_5=
> > GRAY_VAL_5=
> > 
> > GRAY_INK_6=
> > GRAY_VAL_6=
> > 
> > GRAY_INK_7=
> > GRAY_VAL_7=
> > 
> > GRAY_HIGHLIGHT=4
> > GRAY_SHADOW=8
> > 
> > GRAY_GAMMA=1
> > GRAY_CURVE=
> > 
> > #
> > # Toner Partition Information
> > #
> > N_OF_TONER_PARTS=0
> > TONER_INK_1=
> > TONER_VAL_1=
> > TONER_INK_2=
> > TONER_VAL_2=
> > 
> > TONER_HIGHLIGHT=2
> > TONER_SHADOW=2
> > 
> > TONER_GAMMA=1
> > TONER_CURVE=
> > 
> > #
> > # Unused Inks
> > #
> > N_OF_UNUSED=2
> > UNUSED_INK_1=C
> > UNUSED_INK_2=M
> > UNUSED_INK_3=
> > UNUSED_INK_4=
> > 
> > #
> > # the following is a special UltraChrome ink flag it copies the
> > # light-black curves to the light-cyan, light-magenta and yellow inks.
> > # this insures that the LC and LM inks are used to directly neutralize
> > # the color of the light-black.
> > # the color balance of inks is controlled by the LIMIT_... values above.
> > #
> > UC_NEUTRALIZER=YES
> > 
> > LINEARIZE="94.6875 92.4375 89.6775 86.5775 83.3625 80.455 76.6175 72.97 
> 69.135 
> > 65.52 61.59 57.6675 53.8575 50.35 46.915 43.075 38.8975 34.28 30.2975 
25.1075 
> > 18.425"
> > 
> > When dropped onto the ICC droplet it creates this text file along with an ICC file:
> > 
> > QTR-Create-ICC version 2.5.1.0
> > 
> > File: /Users/DMWMBP/Desktop/QTR-Curves/MCL-12708-214-R-out.txt
> > Step	Dens	Lab	A	B	
> > 0.00	0.061	94.69	2.83	-6.85	- b                           |          a              L   +
> > 5.00	0.088	92.44	2.78	-6.80	- b                           |          a             L    +
> > 10.00	0.121	89.68	2.76	-6.77	- b                           |          a           L      +
> > 15.00	0.160	86.58	2.70	-6.62	-  b                          |         a          L        +
> > 20.00	0.202	83.36	2.58	-6.45	-   b                         |         a         L         +
> > 25.00	0.241	80.45	2.54	-6.14	-    b                        |         a       L           +
> > 30.00	0.293	76.62	2.37	-5.82	-     b                       |        a     L              +
> > 35.00	0.346	72.97	2.30	-5.56	-      b                      |        a   L                +
> > 40.00	0.403	69.13	2.14	-5.36	-       b                     |       a  L                  +
> > 45.00	0.460	65.52	1.95	-5.12	-        b                    |      a L                    +
> > 50.00	0.524	61.59	1.83	-4.92	-         b                   |     La                      +
> > 55.00	0.591	57.67	1.59	-4.70	-          b                  |   L a                       +
> > 60.00	0.661	53.86	1.40	-4.31	-           b                 | L  a                        +
> > 65.00	0.728	50.35	1.25	-3.75	-              b              L   a                         +
> > 70.00	0.797	46.91	1.14	-3.08	-                b          L |   a                         +
> > 75.00	0.879	43.07	1.17	-2.19	-                    b   L    |   a                         +
> > 80.00	0.975	38.90	1.26	-1.60	-                      b      |    a                        +
> > 85.00	1.089	34.28	1.34	-1.24	-                   L    b    |    a                        +
> > 90.00	1.197	30.30	1.36	-1.72	-                 L    b      |    a                        +
> > 95.00	1.352	25.11	1.14	-2.67	-              L   b          |   a                         +
> > 100.00	1.583	18.42	0.90	-2.51	-          L       b          |  a                          +
> > 
> > Created ICC file /Users/DMWMBP/Desktop/QTR-Curves/MCL-12708-214-R.icc
> > 
> > I realize that cutting and pasting the text files into this message makes it long but 
> > hopefully it also makes it more clear.
> > 
> > This is being done using the Leopard patched version of QTR on a MacBook Pro 
running 
> > Leopard 10.5.1.
> > 
> > David
> >
>

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.