[argyllcms] Re: Awful result with Argyll 1.3.5 + dispcalGUI 0.8 + i1Display Pro & Dell U2711 :-(((

  • From: János, Tóth F. <janos666@xxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Tue, 17 Jan 2012 19:18:07 +0100

And oh... It's the new i1d3, so I think you will be able to use my
spectral measurements to create a new file (not the very same panel
and not a reference spectro, but still closer than some averaged
generic thing, I guess...).

Unless I deleted every old files after I sold my U2410. :(

2012/1/17, János, Tóth F. <janos666@xxxxxxxxxx>:
> It was already sad before but the U2711 and similar WCG H/p-IPS LCDs
> can give a very hard slap to the generic colorimeter corrections.
>
> By the way... Did you load the generic WCG-CCFL corrections for your
> meter as it was suggested earlier?
>
> When I get home I will tell you what my ColorMunki spectro measured on
> the U2410 (not the same but very similar displays).
>
> 2012/1/16, Paolo Avezzano <info@xxxxxxxxxxxxxxxxx>:
>> Hi Graeme, here are the commands I used and the log I received:
>>
>> ---> 1) dispcal -v -d 2 -A0.1 -P 0.5,0.5,2 -yl -g2.2 -b90 -t6500 -qh -Ibw
>> -X
>> /Library/color/WGCCFLFamily_07Feb11.ccss U2711_D65_G22_A01
>>
>> Black = XYZ   0.13   0.14   0.26
>> Red   = XYZ  37.59  19.58   1.19
>> Green = XYZ  33.70  66.45   8.84
>> Blue  = XYZ  16.60   6.30  87.11
>> White = XYZ  85.33  89.98  98.20
>> patch 80 of 80
>> Had to scale brightness from 90.000000 to 89.197973 to fit within gamut,
>> corresponding to RGB 1.000000 0.992005 0.991198
>> Target white value is XYZ 84.780741 89.197973 97.082347
>> Adjusted target black XYZ 0.13 0.14 0.26, Lab 1.45 -0.12 -1.69
>> Target black after min adjust: XYZ 0.133 0.143 0.261, Lab 1.449 -0.125
>> -1.687
>> Gamma curve input offset = 0.000000, output offset = 0.001604, power =
>> 2.208356
>> Total Iteration 4, Final Samples = 96 Final Repeat threshold = 0.400000
>> Creating initial calibration curves...
>> Doing iteration 1 with 12 sample points and repeat threshold of 1.131371
>> DE
>> patch 12 of 12
>> Brightness error = 0.486331 cd/m^2 (is 89.684304, should be 89.197973)
>> White point error = 0.612358 deltaE
>> Maximum neutral error (@ 0.485209) = 1.116182 deltaE
>> Average neutral error = 0.598239 deltaE
>> Number of measurements taken = 21
>> Computing update to calibration curves...
>> Doing iteration 2 with 24 sample points and repeat threshold of 0.800000
>> DE
>> patch 24 of 24
>> Brightness error = 1.038719 cd/m^2 (is 90.236692, should be 89.197973)
>> White point error = 0.571080 deltaE
>> Maximum neutral error (@ 0.184578) = 0.836761 deltaE
>> Average neutral error = 0.517521 deltaE
>> Failed to meet target 0.800000 delta E, got worst case 0.836761
>> Number of measurements taken = 47
>> Computing update to calibration curves...
>> Doing iteration 3 with 48 sample points and repeat threshold of 0.565685
>> DE
>> patch 48 of 48
>> Brightness error = 0.431898 cd/m^2 (is 89.629871, should be 89.197973)
>> White point error = 0.145325 deltaE
>> Maximum neutral error (@ 0.296838) = 0.770166 deltaE
>> Average neutral error = 0.407646 deltaE
>> Failed to meet target 0.565685 delta E, got worst case 0.836761
>> Number of measurements taken = 184
>> Computing update to calibration curves...
>> Doing iteration 4 with 96 sample points and repeat threshold of 0.400000
>> DE
>> patch 96 of 96
>> Brightness error = 0.127642 cd/m^2 (is 89.325615, should be 89.197973)
>> White point error = 0.355310 deltaE
>> Maximum neutral error (@ 0.125777) = 0.927515 deltaE
>> Average neutral error = 0.357346 deltaE
>> Failed to meet target 0.400000 delta E, got worst case 1.070086
>> Number of measurements taken = 758
>>
>> ---> 2) dispread -v -d 2 -P 0.5,0.5,2 -yl -X
>> /Library/color/WGCCFLFamily_07Feb11.ccss -Ibw -k "U2711_D65_G22_A01.cal"
>> "U2711_D65_G22_A01"
>>
>> (the test chart is the Massive LUT I saved from dispcalGUI, nothing
>> changed)
>>
>> ---> 3) colprof -v -qh -aX -C "Created with dispcalGUI 0.8.1.9 and Argyll
>> CMS 1.3.5" -M "DELL U2711" -A DEL -D "U2711_D65_G22_A01"
>> "U2711_D65_G22_A01"
>>
>> No of test patches = 2386
>> Estimating white point
>> Approximate White point XYZ = 0.957360 0.998272 1.111175, Lab = 99.933165
>> -0.897052 -20.995566
>> Creating optimised per channel curves
>> Initial White Point XYZ 0.957360 0.998272 1.111175, Lab 99.933165
>> -0.897052
>> -20.995566
>> [...]
>> Doing White point fine tune:
>> Before fine tune, rel WP = XYZ 0.964308 1.000338 0.825002, Lab 100.013085
>> -0.037735 0.014308
>> After fine tune, rel WP = XYZ 0.964200 1.000000 0.824900, Lab 99.999999
>> 0.000001 -0.000004
>> Creating fast inverse input lookups
>> White point XYZ = 0.957463 0.998612 1.111307, Lab = 99.946299 -0.935752
>> -20.981700
>> Find black point
>> Black point XYZ = 0.001589 0.001681 0.002985, Lab = 1.518638 -0.131108
>> -3.018071
>> Display Luminance = 90.784896
>> [...]
>> Matrix = 0.403542 0.358106 0.184572
>>          0.208288 0.722210 0.067312
>>          0.010102 0.081156 1.003494
>> Input offset  = -0.111838 -0.010816 -0.051232
>> Output offset = 0.006501 0.001545 0.004508
>> gamma = 0.000000
>> 14000873569461652575830640162194585685152335722185834802975035700186339336243838799520558759965272665807316337482849821460294766314592146904778858569073385617734634660612729208832.000000
>> -54050294267184342510129554449760256.000000
>> 1 harmonics = 0.043894 0.039060 0.143366
>> 2 harmonics = -0.041908 -0.025546 -0.059716
>> 3 harmonics = 0.014177 0.010818 0.055536
>> 4 harmonics = -0.033898 -0.007732 -0.035761
>> 5 harmonics = -0.028711 -0.007659 0.011171
>> 6 harmonics = -0.014042 0.011495 -0.002814
>> 7 harmonics = -0.009377 0.004417 0.022419
>> 8 harmonics = -0.021440 0.003307 -0.003021
>> 9 harmonics = -0.032817 -0.001426 -0.010188
>> 10 harmonics = -0.035891 -0.002015 -0.031408
>> 11 harmonics = -0.037633 -0.008667 -0.031440
>> Find white & black points
>> Initial white point = 0.946220 0.997810 1.094751
>> Initial black point = 0.001400 0.001379 0.003035
>> Fixup matrix for white point
>> After white point adjust:
>> Matrix = 0.429574 0.390603 0.144022
>>          0.219152 0.726002 0.054845
>>          0.006933 0.068377 0.749590
>> Done gamma/shaper and matrix creation
>> Profile done
>> Profile check complete, peak err = 0.645786, avg err = 0.060380, RMS =
>> 0.073486
>>
>> ------------------------------------------
>>
>> I then copied the profile in colorsync folder and compared the gamut to
>> the
>> one I made with i1Profiler:
>>
>>
>>
>>
>> There's no point in testing the profile with profcheck: the gamut is
>> almost
>> the same as my MacBook Pro!
>>
>> What did go wrong?
>>
>> Regards,
>> Paolo
>>
>>
>>
>>
>> On 16/gen/2012, at 09:35, Graeme Gill wrote:
>>
>>> Hi,
>>>     sorry, but I've not seen anything in enough detail to be useful for
>>> investigation. Yes, you've made a lot of qualitative comments, but
>>> without
>>> the
>>> sort of concrete information I requested, it's impossible to track down
>>> where the
>>> problem may be, since I'm not looking over your shoulder, or able to
>>> run my own tests on your system.
>>
>>
>

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