Ethan, "Can the Display-Reader module be used to measure the whitepoint for display measurement data? I'm thinking along the lines of showing a white patch, measuring it, and using that as the whitepoint value." Yes. Here is a screenshot of the tool: http://www.babelcolor.com/main_level/screen_shots/PatchTool_Display-Reader.h... The export dialog: http://www.babelcolor.com/main_level/screen_shots/PatchTool_Display-Reader_C... You can contact me offlist if you prefer. Danny ----- Original Message ----- From: "Ethan Hansen" <ehansen@drycreekphoto.com> To: "'dpascale'" <dpascale@babelcolor.com>; "'Roger Breton'" <graxx@videotron.ca>; "''colorsync-users?lists.apple.com' List'" <colorsync-users@lists.apple.com> Sent: Wednesday, February 18, 2015 4:15 PM Subject: RE: i1Profiler display measurements
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However, this is non-normalized emission data. In other words, the WhitePoint is not normalized to Y=100 and the display WhitePoint will likely not match a standard Illuminant.
When you open the cxf file, PatchTool will ask you to select an Illuminant, because it expects a reference Illuminant, which is always required for reflectance measurement. If your display is nearly spot-on a standard Illuminant (i.e. D50, D65), this selection makes sense. In most cases it does not.
Danny,
Thank you for helping clear up matters! Can the Display-Reader module be used to measure the whitepoint for display measurement data? I'm thinking along the lines of showing a white patch, measuring it, and using that as the whitepoint value.