User Manual

This second example instructs the display to calibrate two presets, the rst with BT.709 primaries, a D65

white point, and a BT.1886 gamma. The second will be calibrated with DCI-P3 primaries, a P3 white point, and

a 2.6 gamma. It stores both calibrations in the factory memory location.

<?xml version="1.0" encoding="ISO-8859-1"?>

<calibration_info>

<target_primaries rx="0.640" ry="0.330" gx="0.300" gy="0.600"

bx="0.150" by="0.060" wx="0.3127" wy="0.329" wY="80"

external="FALSE"/>

</calibration_info>

<calibration_info>

<target_primaries rx="0.680" ry="0.320" gx="0.265" gy="0.690"

bx="0.150" by="0.060" wx="0.314" wy="0.351" wY="48"

use_uv="false" external="false"/>

</calibration_info>

</calibration>

</studiocal>

ICC prole generation

In some workows, an ICC prole of the calibrated preset is required. This prole can be generated by using a

save_icc tag. This tag instructs the display to calculate an ICC prole for the calibrated preset and write it to

the USB ash drive containing the StudioCal XML le. Calculating an ICC prole requires that additional

measurements be made post-calibration, so calibrations using a spectroradiometer may take signicantly

longer.

This tag contains one attribute and is structured as follows:

<save_icc value="TRUE|FALSE"/>

If value is set to TRUE, extended measurements of the lower grayscale are performed. If set to FALSE, the tag

is ignored.

This tag must be placed inside the <calibration_info> element, along with the core calibration tags. This tag

also requires that the <validation> tag be included in the XML le and be set to TRUE. See Validation

on page 77 for information on the <validation> tag.

Generated ICC proles are named using the convention PRESETNUM-PRESETNAME.ICC. Therefore, a

calibration preset with the preset tag <preset num="3" name="BT.709" store="factory"/>, is named 3-BT.

Core calibration tags 75