[argyllcms] Re: Difficult in calibration
- From: "Marco N." <manold@xxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Thu, 5 Nov 2009 00:24:21 +0100
This is the proof. It seems to be OK up to last iteration: ?!?
Thank you
Marco
Last login: Wed Nov 4 23:56:30 on ttys000
iMac-di-Marco-Noldin:~ Marco$ /Applications/Argyll/Argyll_V1.0.4/bin/
dispcal -y l -v imac
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: 33833
Remission Spot Count: 7330
Remission Scan Count: 358
Date of last Remission spot cal: Thu Sep 17 15:48:50 2009
Remission Spot Count at last cal: 7328
Total lamp usage: 12059.380859
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, ^C or Q to abort:
Calibration complete
Place instrument on test window.
Hit Esc, ^C or Q to give up, any other key to continue:
Display type is LCD
Target white = native white point
Target white brightness = native brightness
Target black brightness = native brightness
Target advertised gamma = 1.800000
Display adjustment menu:
Press 1 .. 7
1) Black level (CRT: Offset/Brightness)
2) White point (Color temperature, R,G,B, Gain/Contrast)
3) White level (CRT: Gain/Contrast, LCD: Brightness/Backlight)
4) Black point (R,G,B, Offset/Brightness)
5) Check all
6) Measure and set ambient for viewing condition adjustment
7) Continue on to calibration
8) Exit
Commencing device calibration
patch 6 of 6
Black = XYZ 0.02 0.02 0.08
Red = XYZ 52.01 26.52 1.39
Green = XYZ 38.14 77.15 11.68
Blue = XYZ 19.85 10.47 110.58
White = XYZ 110.19 114.30 123.55
patch 64 of 64
Initial native brightness target = 114.301560 cd/m^2
Target white value is XYZ 110.185139 114.301560 123.554943
Adjusted target black XYZ 0.03 0.03 0.08, Lab 0.21 -0.01 -0.69
Target black after min adjust: XYZ 0.03 0.03 0.08, Lab 0.21 -0.01 -0.69
Gamma curve input offset = 0.010177, output offset = 0.000000, power =
1.826685
Total Iteration 3, Final Samples = 64 Final Repeat threshold = 0.600000
Creating initial calibration curves...
Doing iteration 1 with 16 sample points and repeat threshold of
1.200000 DE
patch 16 of 16
Brightness error = 0.000000 cd/m^2
White point error = 0.000000 deltaE
Maximum neutral error (@ 0.076146) = 1.144771 deltaE
Average neutral error = 0.661319 deltaE
Number of measurements taken = 32
Computing update to calibration curves...
Doing iteration 2 with 32 sample points and repeat threshold of
0.848528 DE
patch 32 of 32
Brightness error = 0.000000 cd/m^2
White point error = 0.000000 deltaE
Maximum neutral error (@ 0.456906) = 0.843594 deltaE
Average neutral error = 0.473460 deltaE
Number of measurements taken = 39
Computing update to calibration curves...
Doing iteration 3 with 64 sample points and repeat threshold of
0.600000 DE
patch 64 of 64
Brightness error = 0.000000 cd/m^2
White point error = 0.000000 deltaE
Maximum neutral error (@ 0.000000) = 3.127769 deltaE
Average neutral error = 0.619199 deltaE
Failed to meet target 0.600000 delta E, got worst case 2.555258
Number of measurements taken = 280
The instrument can be removed from the screen.
Written calibration file 'imac.cal'
iMac-di-Marco-Noldin:~ Marco$
Il giorno 04/nov/2009, alle ore 19.14, Pascal de Bruijn ha scritto:
On Wed, Nov 4, 2009 at 6:55 PM, manold@xxxxxxxxxx
<manold@xxxxxxxxxx> wrote:
Today I have try to calibrate my old Imac with Dispcal. Below the
results: the average and maximum error at the end are worse than at
beginning. Why?
Try running dispcal without the extensive parameters
just "dispcal -y l -v imac"
Regards,
Pascal de Bruijn
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