On Thursday 22 March 2007 04:50, Graeme Gill wrote: > Please report and problems or issues in compiling or running this > snapshot. I've just used dispcal from this beta, with a DTP92Q. I attached the results, and those from the v0.60... There are differences, but I don't know which one is better. Measures where done one after another, with following parameters: $ dispcal -v -d 2,1 -K -q h -y c -m A901HT (0.70b1) and $ dispcal -v -i 92 -d 2,1 -a -q h -y c -m A901HT (0.60) These are the first measures I made on this screen, but once the LUT is loaded, black does not remain black. I guess this is what we see on the graph: curves do not start at 0. is it a screen issue, a colorimeter issue, software issue, or, more probably, a user issue? ;o) -- Frédéric http://www.gbiloba.org
$ dispcal -v -i 92 -d 2,1 -a -q h -y c -m A901HT Setting up the instrument Offset calibration: Place instrument on a dark surface. Hit Esc to skip, any other key to start calibration: Offset calibration successful The instrument can be removed from the dark surface. Cell ratio calibration: Place instrument on test window. Hit Esc to skip, any other key to start calibration: Cell ratio calibration successful The instrument can be removed from the screen. Setting up the instrument Place instrument on test window. Hit Esc to give up, any other key to continue: Display type is CRT Target white = native white Target brightness = native brightness Target gamma = 2.200000 Commencing device calibration patch 6 of 6 Black = XYZ 0.38 0.42 0.62 Red = XYZ 41.56 22.37 2.51 Green = XYZ 35.45 73.31 13.84 Blue = XYZ 18.06 8.87 91.75 White = XYZ 94.74 104.31 107.48 patch 96 of 96 Initial native brightness target = 104.310000 cd/m^2 Had to scale brightness from 104.310000 to 103.915985 to fit within gamut Target white value is XYZ 94.382134 103.915985 107.074011 Target black point = 0.537694 0.592009 0.610000 Gamma curve offset = 0.095464 Creating initial calibration curves... patch 96 of 96 Brightness error = 0.504015 cd/m^2 White point error = 0.201970 deltaE Maximum neutral error (@ 0.043737) = 4.406643 deltaE Average neutral error = 1.613283 deltaE Computing update to calibration curves... patch 96 of 96 Brightness error = -0.085985 cd/m^2 White point error = 0.105613 deltaE Maximum neutral error (@ 0.043737) = 5.138464 deltaE Average neutral error = 1.528510 deltaE Computing update to calibration curves... patch 96 of 96 Brightness error = -0.535985 cd/m^2 White point error = 0.291157 deltaE Maximum neutral error (@ 0.000000) = 1.375229 deltaE Average neutral error = 0.551654 deltaE Computing update to calibration curves... patch 96 of 96 Brightness error = -1.045985 cd/m^2 White point error = 0.441673 deltaE Maximum neutral error (@ 0.126844) = 1.877809 deltaE Average neutral error = 0.497746 deltaE Computing update to calibration curves... The instrument can be removed from the screen.
$ /usr/local/src/argyllV0.70Beta1_linux_x86_bin/bin/dispcal -v -d 2,1 -K -q h -y c -m A901HT Setting up the instrument Instrument Type: DTP92Q Serial Number: 009156 BOOT version: None Software version: A323 Place the instrument on a dark surface, and then hit any key to continue, or hit Esc, ^C or Q to abort: Calibration complete Setting up the instrument Instrument Type: DTP92Q Serial Number: 009156 BOOT version: None Software version: A323 Place instrument on test window. Hit Esc, ^C or Q to give up, any other key to continue: Display type is CRT Target white = native white Target brightness = native brightness Target gamma = 2.200000 Commencing device calibration patch 6 of 6 Black = XYZ 0.07 0.11 0.03 Red = XYZ 39.92 21.36 1.85 Green = XYZ 34.59 71.67 12.94 Blue = XYZ 17.53 8.50 89.76 White = XYZ 92.73 101.89 105.16 patch 96 of 96 Initial native brightness target = 101.890000 cd/m^2 Had to scale brightness from 101.890000 to 101.870455 to fit within gamut Target white value is XYZ 92.712213 101.870455 105.139828 Target black point = 0.100111 0.110000 0.113530 Gamma curve offset = 0.057597, Gamma curve power = 2.393361 Creating initial calibration curves... patch 96 of 96 Brightness error = 0.019545 cd/m^2 White point error = 0.109318 deltaE Maximum neutral error (@ 0.029208) = 2.270216 deltaE Average neutral error = 0.873939 deltaE Computing update to calibration curves... patch 96 of 96 Brightness error = -0.030455 cd/m^2 White point error = 0.105517 deltaE Maximum neutral error (@ 0.029208) = 3.573527 deltaE Average neutral error = 0.538375 deltaE Computing update to calibration curves... patch 96 of 96 Brightness error = -0.100455 cd/m^2 White point error = 0.093898 deltaE Maximum neutral error (@ 0.029208) = 2.113074 deltaE Average neutral error = 0.419833 deltaE Computing update to calibration curves... patch 96 of 96 Brightness error = -0.130455 cd/m^2 White point error = 0.068449 deltaE Maximum neutral error (@ 0.015823) = 3.336289 deltaE Average neutral error = 0.448108 deltaE Computing update to calibration curves... The instrument can be removed from the screen.
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