[argyllcms] Difficult in calibration
- From: "manold@xxxxxxxxxx" <manold@xxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Wed, 4 Nov 2009 18:55:07 +0100 (CET)
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?
Thank you
Marco
>>
Last login: Wed Nov 4 10:50:39
on ttys000
iMac-di-Marco-Noldin:~ Marco$ /Applications/Argyll/Argyll_V1.
0.4/bin/dispcal -v -yl -t 6500 -g2.2 -k0 -qh calibr_Imac_04_11_09
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 = 6500.000000 degrees kelvin Daylight spectrum
Target
white brightness = native brightness
Target black brightness = native
brightness
Target advertised gamma = 2.200000
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
Doing some
initial measurements
White = XYZ 144.97 150.28 162.68
Adjust CRT
Contrast or LCD Brightness to desired level. Press space when done.
Initial 150.28
Sample read failed due to misread
Hit Esc, ^C or Q to
give up, any other key to retry:
/ Current 137.28
Sample read failed
due to misread
Hit Esc, ^C or Q to give up, any other key to retry:
/
Current 113.95
Sample read failed due to misread
Hit Esc, ^C or Q to
give up, any other key to retry:
\ Current 124.44
Sample read failed
due to misread
Hit Esc, ^C or Q to give up, any other key to retry:
\
Current 124.34
Sample read failed due to misread
Hit Esc, ^C or Q to
give up, any other key to retry:
\ Current 329.39
Sample read failed
due to misread
Hit Esc, ^C or Q to give up, any other key to retry:
/
Current 136.45
Sample read failed due to misread
Hit Esc, ^C or Q to
give up, any other key to retry:
\ Current 116.29 ^[
Sample read
stopped at user request!
Hit Esc, ^C or Q to give up, any other key to
retry:
The instrument can be removed from the screen.
dispcal: Error -
display read failed with 'User Aborted'
iMac-di-Marco-Noldin:~ Marco$
iMac-di-Marco-Noldin:~ Marco$ /Applications/Argyll/Argyll_V1.0.4
/bin/dispcal -v -yl -t 6500 -g2.2 -k0 -qh calibr_Imac_04_11_09
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:
Calibrate failed with 'User hit Abort Key' (No device
error)
The instrument can be removed from the screen.
dispcal: Error -
new_disprd() failed with 'Instrument Access Failed'
iMac-di-Marco-
Noldin:~ Marco$ /Applications/Argyll/Argyll_V1.0.4/bin/dispcal -v -yl -
t 6500 -g2.2 -k0 -N -qh calibr_Imac_04_11_09
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 instrument on test window.
Hit Esc, ^C
or Q to give up, any other key to continue:
Display type is LCD
Target
white = 6500.000000 degrees kelvin Daylight spectrum
Target white
brightness = native brightness
Target black brightness = native
brightness
Target advertised gamma = 2.200000
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
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 0.16 0.14 0.21
Red = XYZ 49.79 25.44 1.48
Green = XYZ 36.39 73.36 11.27
Blue = XYZ 19.26 10.25 106.10
White = XYZ
105.04 108.70 118.41
patch 80 of 80
Initial native brightness target =
108.702267 cd/m^2
Had to scale brightness from 108.702267 to 106.973663
to fit within gamut,
corresponding to RGB 0.960370 1.000000 0.990181
Target white value is XYZ 101.676149 106.973663 116.429263
Adjusted
target black XYZ 0.15 0.13 0.21, Lab 1.06 1.27 -0.93
Target black after
min adjust: XYZ 0.15 0.13 0.21, Lab 1.06 1.27 -0.93
Gamma curve input
offset = 0.060350, output offset = 0.000000, power = 2.403165
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 = -2.011951 cd/m^2
White point error = 1.140853 deltaE
Maximum
neutral error (@ 1.000000) = 1.349361 deltaE
Average neutral error =
0.822225 deltaE
Failed to meet target 1.131371 delta E, got worst case
1.349361
Number of measurements taken = 50
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 =
-1.976754 cd/m^2
White point error = 1.236497 deltaE
Maximum neutral
error (@ 0.000000) = 1.998608 deltaE
Average neutral error = 0.622495
deltaE
Failed to meet target 0.800000 delta E, got worst case 1.998608
Number of measurements taken = 96
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 = -2.521551 cd/m^2
White
point error = 1.103906 deltaE
Maximum neutral error (@ 0.000000) =
3.853965 deltaE
Average neutral error = 0.762469 deltaE
Failed to meet
target 0.565685 delta E, got worst case 3.853965
Number of measurements
taken = 239
Computing update to calibration curves...
Doing iteration 4
with 96 sample points and repeat threshold of 0.400000 DE
patch 33 of
96
Sample read failed due to misread
Hit Esc, ^C or Q to give up, any
other key to retry:
patch 96 of 96
Brightness error = -2.458040 cd/m^2
White point error = 1.523172 deltaE
Maximum neutral error (@ 0.000000)
= 6.771865 deltaE
Average neutral error = 1.401901 deltaE
Failed to
meet target 0.400000 delta E, got worst case 4.855975
Number of
measurements taken = 783
The instrument can be removed from the screen.
Written calibration file 'calibr_Imac_04_11_09.cal'
iMac-di-Marco-
Noldin:~ Marco$
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