[argyllcms] Re: Qpcard 202

Lars Tore Gustavsen wrote:

So if anyone have a cht file for it would be very nice. I have started
to create one (from an image of it on the qpcard web site), but the
boxes keyword is pretty hard to figure out.


See if the attached works for you.


Will the scanin program allow me have the card "tilted" in the scene?

> I mean, must it line up with the sensor of the camera? If so, I guess
> I can use hugin (panoramtools) to correct perspective before I try to
> use scanin, if the image is not in register with the sensor.

It was really written for scanners, so will accommodate rotation, but
not perspective.


I normally shoot images in raw format with my camera. Will it be
possible to link the created qpcard profile to my normal camera
profile, and apply it at conversion time? Or have I misunderstood
something about profile linking?


Given the small number of test points, you're probably best starting
by creating a shaper/matrix profile, and seeing how that goes.
The profile will be one that converts the raw RGB values to
PCS (ie. XYZ or Lab), so the normal thing is to link it with
some other device profile, such as AdobeRGB, a monitor, or
printer. You can always simply use the RGB->PCS file on its
own with imdi/cctiff to convert RAW to Lab colorspace, and then
go from there.

It would be interesting to year how well or badly this works :-)

Graeme Gill.

IT8.7/2
ORIGINATOR "Graeme Gill, ArgyllCMS"
DESCRIPTOR "QPCard 201"
CREATED  "Nov 29, 2007"
MANUFACTURER "QPcard AB"
NUMBER_OF_FIELDS 4
BEGIN_DATA_FORMAT
SAMPLE_ID XYZ_X XYZ_Y XYZ_Z
END_DATA_FORMAT
NUMBER_OF_SETS  30
BEGIN_DATA
A1      47.8 50.5 53.2
A2      9.3 9.6 27.6
A3      60.7 62.1 11.2
A4      4.4 4.6 4.9
A5      10.5 11.1 11.9
A6      16.8 17.8 19.5
A7      32.9 34.7 36.8
A8      65.1 68.9 72.5
A9      81.8 86.6 91.0
A10     47.8 50.5 53.2
B1      36.9 43.1 7.0
B2      15.7 26.5 17.4
B3      29.8 19.5 20.8
B4      6.2 5.7 7.9
B5      10.1 12.3 6.8
B6      19.9 20.5 6.5
B7      11.0 9.9 6.8
B8      36.2 34.2 25.0
B9      60.7 67.5 73.7
B10     56.3 56.5 70.3
C1      47.8 50.5 53.2
C2      14.5 8.9 4.3
C3      18.6 24.8 52.5
C4      9.6 7.2 6.1
C5      18.0 19.8 34.8
C6      43.0 30.9 5.8
C7      57.0 49.6 6.6
C8      69.3 68.9 47.9
C9      64.5 69.9 59.9
C10     47.8 50.5 53.2
END_DATA

BOXES 31
  F _ _ _ _ 0.0 0.0  1654.0 0.0  1654.0 478.0
  D ALL ALL _ _ 1654.0 478.0 0.0 0.0 0 0
  Y 1 10 A C 118.0 119.0 239.0 66.0 141.5 142.0

BOX_SHRINK 10.0

REF_ROTATION 0.0

XLIST 22
  150.618062 0.144363 0.166667
  161.602137 0.245110 0.333333
  238.956434 0.946427 1.000000
  357.016882 0.855510 1.000000
  379.969304 0.948635 1.000000
  497.948383 0.927859 1.000000
  521.902072 1.000000 1.000000
  640.004059 0.922588 1.000000
  662.964760 0.948369 1.000000
  782.052769 0.951028 1.000000
  804.971146 0.886492 1.000000
  923.008950 0.922731 1.000000
  946.989395 0.865832 1.000000
  1066.007371 0.876333 1.000000
  1088.986522 0.865792 1.000000
  1208.017128 0.871015 1.000000
  1229.826796 0.868345 1.000000
  1349.181703 0.847707 1.000000
  1372.210921 0.767835 1.000000
  1490.553264 0.783286 1.000000
  1513.822380 0.891664 1.000000
  1633.171522 0.868381 1.000000

YLIST 8
  65.941330 0.342831 1.000000
  184.978043 0.345580 1.000000
  207.991441 0.442638 1.000000
  325.524788 1.000000 1.000000
  348.940333 0.208095 1.000000
  366.421405 0.090483 0.647059
  378.396408 0.079155 0.617647
  466.955243 0.226972 0.000000

EXPECTED XYZ 30
  A1    47.8 50.5 53.2
  A2    9.3 9.6 27.6
  A3    60.7 62.1 11.2
  A4    4.4 4.6 4.9
  A5    10.5 11.1 11.9
  A6    16.8 17.8 19.5
  A7    32.9 34.7 36.8
  A8    65.1 68.9 72.5
  A9    81.8 86.6 91.0
  A10   47.8 50.5 53.2
  B1    36.9 43.1 7.0
  B2    15.7 26.5 17.4
  B3    29.8 19.5 20.8
  B4    6.2 5.7 7.9
  B5    10.1 12.3 6.8
  B6    19.9 20.5 6.5
  B7    11.0 9.9 6.8
  B8    36.2 34.2 25.0
  B9    60.7 67.5 73.7
  B10   56.3 56.5 70.3
  C1    47.8 50.5 53.2
  C2    14.5 8.9 4.3
  C3    18.6 24.8 52.5
  C4    9.6 7.2 6.1
  C5    18.0 19.8 34.8
  C6    43.0 30.9 5.8
  C7    57.0 49.6 6.6
  C8    69.3 68.9 47.9
  C9    64.5 69.9 59.9
  C10   47.8 50.5 53.2

Other related posts: