cristian

Hello Damien, why do you say there is no problem? if a validation report is wrong, I see a problem: I didn't use a free software, but I purchased something from a well-know company, and I paid it 200$, I expect it works. Looking at first row: I made the calculation: the DE76 is 4.03, the DE2000 is 2.74, the CMC is 3.23. The report says it is 0.53. So it is wrong, therefore there is a problem. I made other tests with other instruments and I can say the profile generated by the calibrite colorimeter is quite fine, so it seems the colorimeter does what is supposed to do, but I spent few days to figured it out. I wrote to Calibrite to ask information about this, and I received no answer. This is also a problem for me. Anyway, I don't want to create a case, just ask if others found this behaviour. For now I can say the profile is fine, and for me this is enough. Thanks for follow the topic

Hello Daniel, thank you again for your message. I made other tests, using D50 as white point for the display instead of D65 as done in the previous tests. I am attaching the new report, and as you can see the DE calculated is again incorrect (DE between TARGET and MEASURED). Futhermore, I found that the TARGET CIELAB values are identical to the previous report, as you can see from the first image in the firt post (and also to other two reports I made with different monitors). So it seems to me that the report is showing wrong TARGET CIELAB values (always the same - I think they should change according to the profile), but hopefully the DE calculated is between the correct DE measured and calculculated. This is of course my understanding. If I discover something new, I will update. Thanks, Best, Cristian

Thank you again for your answer and effort to think to a possible cause. I agree with you that screens are not perfect, I don't understand why a simple operation as calculating a DE is totally wrong (I tried it on another screen, and also updated to the new calibrite version 2.0, getting again wrong results). I was curious to see reports from other people to see if those are correct. I am a computer scientist with a scientific approach... numbers are numbers and don't lie (usually!)

Hello, thanks for the answer. Actually at the moment I am not interested in the prints, but in the numbers. I am doing a scientific research for which I need a calibrated monitor, but I don't know if trusting it or not. I think I will try with another version of the software, or a third part software... I was wondering if other people met this weird behavior

Hello, thank you for this nice forum, with a lot of information. I have a monitor, and I calibrated it with a new calibrite Display Pro HL, on windows. After calibration I run the validation with the color checker patches, and I get at first glance very good results, but it seems to me that they are wrong. I am attaching part of the report, and as you can see the b* is totally different between target and measured, but the DE calculated is very low... Do you have any idea of the possible reason? Thank you Cristian