[argyllcms] Re: Dispcal and black point

  • From: "Marco N." <manold@xxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Thu, 12 Aug 2010 22:08:49 +0200

My starting point was in DispcalGUI and I have had no successfully. Then I have 
tried directly with the command line version.

I have tried your setting together with native white point, maximal white 
level, minimal black level, gamma 2.2: the black point and the end is corrected.

Marco


================================================================================
dispcalGUI.app 0.5.8.1 2010-08-01T03:39:24.566219Z
Mac OS X 10.6.4 i386
Python 2.6.5 (r265:79359, Mar 24 2010, 01:32:55) 
[GCC 4.0.1 (Apple Inc. build 5493)]
wxPython 2.8.11.0 (mac-unicode)
Starting up...
Enumerating display devices and communication ports...
/Applications/Argyll/Argyll/bin
Argyll CMS 1.2.1
...ok.
Checking video card gamma table access for display 1...
Verify: 'test.cal' IS loaded (discrepancy 0.0%)
...ok.
Initializing GUI...
...ok.
Loading calibration curves from file...
/Users/Marco/Desktop/Temp/cal1.cal
About to open dispwin object on the display
About to clear the calibration
About to set display to given calibration
Calibration set
About to destroy dispwin object
...ok.
Ready.
Loading calibration curves of current display device profile...
/Library/ColorSync/Profiles/12.08.10-6500K-22-120cd_002.icc
About to open dispwin object on the display
About to clear the calibration
About to set display to given calibration
Calibration set
About to destroy dispwin object
...ok.
--------------------------------------------------------------------------------
Calibrate only

Working directory:
  /
   var/
    folders/
     O+/
      O+OFeJicFoOwPdBsc+iWlU+++TI/
       -Tmp-/
        dispcalGUI-4Jm5RF/

Command line:
  dispcal
    -v2
    -d1
    -c1
    "-P-0.0070771408351,0.031746031746,1.352"
    -H
    -qv
    -m
    -t
    -g2.2
    -f1.0
    -k0.0
    -A4.0
    "LaCie 324 2010-08-12 max native min native 2.2 VLQ-HQ 3xCurve+MTX gc"

Calibrate a Display, Version 1.2.1
Author: Graeme W. Gill, licensed under the GPL Version 3
Diagnostic: -P parameters -0.007077 0.031746 1.352000 out of range
usage: dispcal [options] outfile
 -v [n]               Verbose mode
 -d n                 Choose the display from the following list (default 1)
    1 = 'LaCie 324, at 0, 0, width 1920, height 1200 (Primary Display)'
 -c listno            Set communication port from the following list (default 1)
    1 = 'usb:/bus61/dev2/ (GretagMacbeth i1 Pro)'
    2 = '/dev/cu.ANTUSBStick.slabvcp'
 -r                   Report on the calibrated display then exit
 -R                   Report on the uncalibrated display then exit
 -m                   Skip adjustment of the monitor controls
 -o [profile.icc]     Create fast matrix/shaper profile [different filename to 
outfile.icc]
 -O "description"     Fast ICC Profile Description string (Default "outfile")
 -u                   Update previous calibration and (if -o used) ICC profile 
VideoLUTs
 -q [lmh]             Quality - Low, Medium (def), High
 -p                   Use projector mode (if available)
 -y c|l               Display type, c = CRT, l = LCD
 -t [temp]            White Daylight locus target, optional target temperaturee 
in deg. K (deflt.)
 -T [temp]            White Black Body locus target, optional target 
temperaturee in deg. K
 -w x,y               Set the target white point as chromaticity coordinates
 -b bright            Set the target white brightness in cd/m^2
 -g gamma             Set the target response curve advertised gamma (Def. 2.4)
                      Use "-gl" for L*a*b* curve
                      Use "-gs" for sRGB curve
                      Use "-g709" for REC 709 curve (should use -a as well!)
                      Use "-g240" for SMPTE 240M curve (should use -a as well!)
 -G gamma             Set the target response curve actual technical gamma
 -f [degree]          Amount of black level accounted for with output offset 
(default all output offset)
 -a ambient           Use viewing condition adjustment fo
r ambient in Lux
 -k factor            Amount to try and correct black point hue. Default 1.0, 
LCD default 0.0
 -A rate              Rate of blending from neutral to black point. Default 4.0
 -B blkbright         Set the target black brightness in cd/m^2
 -e [n]               Run n verify passes on final curves
 -E                   Run only verify pass on installed calibration curves
 -P ho,vo,ss          Position test window and scale it
                      ho,vi: 0.0 = left/top, 0.5 = center, 1.0 = right/bottom 
etc.
                      ss: 0.5 = half, 1.0 = normal, 2.0 = double etc.
 -F                   Fill whole screen with black background
 -K                   Run instrument calibration first (used rarely)
 -N                   Disable auto calibration of instrument
 -H                   Use high resolution spectrum mode (if available)
 -V                   Use adaptive measurement mode (if available)
 -C "command"         Invoke shell "command" each time a color is set
 -M "command
"         Invoke shell "command" each time a color is measured
 -W n|h|x             Override serial port flow control: n = none, h = HW, x = 
Xon/Xoff
 -D [level]           Print debug diagnostics to stderr
 inoutfile            Base name for created or updated .cal and .icc output 
files
...aborted.
Calibration has not been finished.
--------------------------------------------------------------------------------
Calibrate only

Working directory:
  /
   var/
    folders/
     O+/
      O+OFeJicFoOwPdBsc+iWlU+++TI/
       -Tmp-/
        dispcalGUI-NZStpV/

Command line:
  dispcal
    -v2
    -d1
    -c1
    "-P0.0,0.0304955527319,1.10133333333"
    -H
    -qv
    -m
    -t
    -g2.2
    -f1.0
    -k0.0
    -A4.0
    "LaCie 324 2010-08-12 max native min native 2.2 VLQ-HQ 3xCurve+MTX gc"

Setting up the instrument
Instrument Type:   Eye-One Pro
Serial Number:     120288
Firmware version:  302
CPLD version:      301
Date manufactured: 12-4-2005
U.V. filter ?:     No
Measure Ambient ?: Yes
Tot. Measurement Count:           43181
Remission Spot Count:             7355
Remission Scan Count:             359
Date of last Remission spot cal:  Thu Nov  5 06:15:15 2009
Remission Spot Count at last cal: 7339
Total lamp usage:                 12067.755859
Place cap on the instrument, or place in on a dark surface,
or place on the white calibration reference,
 and then hit any key to continue,
 or hit Esc or Q to abort:

Calibration complete

Place instrument on test window.
Hit Esc or Q to give up, any other key to continue:

Target white = native white point
Target white brightness = native brightness
Target black brightness = native brightness
Target advertised gamma = 2.200000
Commencing device calibration
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Patch 6 of 6

Black = XYZ   0.14   0.17   0.17
Red   = XYZ  52.31  24.04   1.54
Green = XYZ  32.18  88.33   9.29
Blue  = XYZ  21.90  14.67 114.45
White = XYZ 106.56 127.18 125.27
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Initial native brightness target = 127.181941 cd/m^2
Target white value is XYZ 106.557587 127.181941 125.274409
Adjusted target black XYZ 0.13 0.15 0.16, Lab 1.09 0.06 -0.06
Target black after min adjust: XYZ 0.130 0.153 0.156, Lab 1.088 0.059 -0.059
Gamma curve input offset = 0.000000, output offset = 0.001204, power = 2.206267
Total Iteration 1, Final Samples = 16 Final Repeat threshold = 1.500000
Creating initial calibration curves...
Doing iteration 1 with 16 sample points and repeat threshold of 1.500000 DE
Patch 1 of 16
Point 1 deltaE 0.000000, previous pass deltaE 0.000000, OK
Patch 2 of 16
Point 2 deltaE 2.959817, previous pass deltaE 2.959820, Repeat
Patch 2 of 16
Point 2 deltaE 1.053576, previous pass deltaE 1.053572, OK
Patch 3 of 16
Point 3 deltaE 5.045686, previous pass deltaE 5.255463, Repeat
Patch 3 of 16
Point 3 deltaE 0.666845, previous pass deltaE 0.644224, OK
Patch 4 of 16
Point 4 deltaE 4.946361, previous pass deltaE 5.137517, Repeat
Patch 4 of 16
Point 4 deltaE 0.830019, previous pass deltaE 0.566779, OK
Patch 5 of 16
Point 5 deltaE 5.122634, previous pass deltaE 5.382260, Repeat
Patch 5 of 16
Point 5 deltaE 1.460074, previous pass deltaE 1.822812, Repeat
Patch 5 of 16
Point 5 deltaE 0.789621, previous pass deltaE 1.221016, OK
Patch 6 of 16
Point 6 deltaE 4.442867, previous pass deltaE 4.545519, Repeat
Patch 6 of 16
Point 6 deltaE 1.078914, previous pass deltaE 1.240889, OK
Patch 7 of 16
Point 7 deltaE 3.991012, previous pass deltaE 4.039230, Repeat
Patch 7 of 16
Point 7 deltaE 0.965123, previous pass deltaE 0.995591, OK
Patch 8 of 16
Point 8 deltaE 3.266895, previous pass deltaE 3.274633, Repeat
Patch 8 of 16
Point 8 deltaE 1.323683, previous pass deltaE 1.306815, OK
Patch 9 of 16
Point 9 deltaE 3.474172, previous pass deltaE 3.484302, Repeat
Patch 9 of 16
Point 9 deltaE 0.943118, previous pass deltaE 1.022089, OK
Patch 10 of 16
Point 10 deltaE 1.132376, previous pass deltaE 1.384515, OK
Patch 11 of 16
Point 11 deltaE 1.931029, previous pass deltaE 2.180308, Repeat
Patch 11 of 16
Point 11 deltaE 0.893858, previous pass deltaE 0.475057, OK
Patch 12 of 16
Point 12 deltaE 0.659083, previous pass deltaE 0.784744, OK
Patch 13 of 16
Point 13 deltaE 1.228827, previous pass deltaE 1.350325, OK
Patch 14 of 16
Point 14 deltaE 0.834055, previous pass deltaE 0.635669, OK
Patch 15 of 16
Point 15 deltaE 0.467666, previous pass deltaE 0.331544, OK
Patch 16 of 16
Point 16 deltaE 0.316939, previous pass deltaE 0.417945, OK
Brightness error = 0.000000 cd/m^2 (is 129.047017, should be 129.047017)
White point error = 0.000000 deltaE
Maximum neutral error (@ 0.365761) = 1.378931 deltaE
Average neutral error = 0.957776 deltaE
Number of measurements taken = 26
The instrument can be removed from the screen.
Written calibration file 'LaCie 324 2010-08-12 max native min native 2.2 VLQ-HQ 
3xCurve+MTX gc.cal'
Loading calibration curves from file...
/Users/Marco/Library/Application Support/dispcalGUI/storage/LaCie 324 
2010-08-12 max native min native 2.2 VLQ-HQ 3xCurve+MTX gc/LaCie 324 2010-08-12 
max native min native 2.2 VLQ-HQ 3xCurve+MTX gc.cal
About to open dispwin object on the display
About to clear the calibration
About to set display to given calibration
Calibration set
About to destroy dispwin object
...ok.
Calibration complete!

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