SPD2Matrix - Correlation Files to Matrix Conversion

A major issue with the use of Correlation Files with the Calibrite/Xrite i1D3 colourimeters is they cannot take into account the probe-to-probe variations of individual i1D3 units, as is shown on the i1D3 page of the website, the ? Correlation File Accuracy modal, where 5 different i1D3 units are compared using the same Correlation File.
They are also restricted for use just with i1D3 probes.

With ColourSpace's unique Probe Matching capabilities both restrictions can be overcome by converting any Correlation File into a ColourSpace Probe Match file, for use with any colourimeter.
And this is what the Correlation Files to Matrix Converter (SPD2Matrix) app does.

The app generates a ColourSpace .bpd Probe Match file that can be used as the Reference within ColourSpace's Probe Matching capability.
(Obviously, the Correlation File has to be one for your specific display!)

The one limitation, as with any Correlation File use, is Luminance matching cannot not performed, as with standard Probe Matching.
Therefore, during the Correlation File to Matrix conversion the measured Peak Y value of the display to be calibrated needs to be entered, with the relative RGB Y values for the file being ripple adjusted.

As this is how Correlation Files work with any i1D3 probe (no Y Luminance matching is performed), the calibration workflow is consistent.

When using the generated Reference .bpd Probe Match file generate the required Active probe match file as normal.
(It is the Y value from this that should be used when generating the Reference file via SPD2Matrix.)
(And if using an i1D3, do not use any Correlation File with the probe!)

The SPD2Matrix app can be downloads via Customer Downloads, or General Downloads.

Steve

I have a correlation file for my panel.
I convert it via (SPD2Matrix) to bpd (assume I indicated 100 Nits, and my panel perfectly matches that value)
Are the probe matched measurements I do with my I1D3 (no correlation) the same I do with my I1D3 set to that correlation file?

No, as the Probe Match workflow means you will be directly matching the i1D3 to the Reference data, which using a Correlation File cannot do, as stated above.
If the result were the same, there would be no point in using SPD2Matrix...

Steve

Do you mean I can take a spectral correction set (I assume RGBW) on my panel, convert it and use it any colorimeter?
Is that the use of the SPD2Matrix tool?

Yes!
Have a read of the Addons page of the website, the Additions section where SPD2Matrix is listed.

Also, if you read the first post in this thread your question is already answered there.

Steve