It’s time to stop using the Kelvin scale for display calibration

The Kelvin scale has always been relatively simple to understand in the context of display calibration. Choose a higher value and your display white point will be bluer; choose a lower value and it will be yellower, etc. But this is where the simplicity stops and the confusion begins. What do we do if the white point appears to be magenta or greenish? And why doesn’t the display calibration Kelvin value correlate with the value of our lighting? In other words, why does calibrating to ~5700 Kelvin match 4100 Kelvin lights? Why can’t we calibrate to 4100K to match 4100K lights? So hard…


Using i1Profiler for QTR grayscale measurement and profiling

Recently I wrote an article on "Using ColorPort for QTR grayscale measurement and profiling." Today I'd like to talk about using i1Profiler v1.3 for QTR grayscale measurement and profiling. I've been using i1Profiler's new "Measure Reference Chart" feature and the new i1Pro2 "Raven" device for a year and now that it's officially released I can tell you about it. i1Profiler is XRite's new professional level application that anyone can download for free at XRite.com. While some of the features require a purchase or dongle, the "Measure Reference Chart" feature that we will use for this doesn't…