Luminous Landscape Forum

Raw & Post Processing, Printing => Colour Management => Topic started by: jeffo on December 18, 2015, 03:17:08 am

Title: DispcalGUI Verification results
Post by: jeffo on December 18, 2015, 03:17:08 am

hey there,
I am interested to know, if there is someone that could explain in a few words, in which decent range should be the following values of the DispcalGUI Verification results please,
0.5 .. 2 deltaE in all the cases?

Brightness error =  cd/m^2 (?)
White point error = deltaE (?)
Maximum neutral error  deltaE (?)
Average neutral error =  deltaE (0.5 ...2) as far as I've found;
Thank you,

Title: Re: DispcalGUI Verification results
Post by: markanini on December 18, 2015, 05:53:16 am

Under 1 deltaE is imperceptible. Above 2-3 deltaE differences are visible to the eye. My display reported somewhere around 0.4 average deltaE and 1.8 max deltaE. It's a mid-range IPS model from 2010.

Title: Re: DispcalGUI Verification results
Post by: jeffo on December 18, 2015, 05:57:12 am

Thank you, good to know. How about the Brightness error =  cd/m^2 (?)

Title: Re: DispcalGUI Verification results
Post by: digitaldog on December 18, 2015, 10:16:46 am

Quote from: jeffo on December 18, 2015, 03:17:08 am

Average neutral error =  deltaE (0.5 ...2) as far as I've found;

Average of how many samples?
Over what range of color's (color space used)? Some colors are much more difficult to hit than others.
IF the original instrument introduces noise in the data (and all do to varying degrees), or errors, did you use the same instrument to produce this report?