Barco DP2K SLP Series User Manual

12. Color calibration
12.2 Color gamut calibration
Color G amut
Color G am ut is the entire range of reproducible colors by a particular device such as a projector. The entire range of reproducible
colors are typically defined so that horizontal and vertical directions describe saturation and luminance changes, respectively. When
a c olor is "out of gamut," it is not possible to reach that color by the device.
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Image 12-1
Sample Chromaticity Diagram with Color Gamut of target dev
ice (1).
Why apply color correction?
During the pos t-production process of a film , a specific color space is applied. This color space is the Target Color Gamut Data
(TCGD). All movie content oper ates under that gamut. To ensure that in the cinema theater the film is projected within t he same
color space as intended by the film industry, the color s pace of the projector has to be corrected accordingly.
What has to be done?
The c olor coordinates for the projected primary colors must be measured on the screen. T he values can be different than those
originally inside the projector due to reflection on the screen or due to the influence of the glass between the projection booth and
the theatre and even the projected colors are different from setup to setup.
These meas ured color coordinates are references for the projector and will be entered so that the projector knows how its colors
are projected on the screen. This reference measurement (MCGD), together with the delivered gamut file (TCGD) of the film will
introduce a color c orrection so t hat the film will be projected with the desired color target.
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Image 12-2
Correction of native color gam ut towards desired color gamut (electronic correction)
Electronic correction
The e lectronic correction adapt the native color gamut towards the desired (target) color gam ut (e.g. DC28_DCI_Xenon.TCGD).
This correction is introduced by the DM D drivers and is also called ‘P7 correction’. The electronic correction takes place onc e the
MCGD file of the projector is mappe d with the T CG D file of the fi lm.
R5906847 DP2K SLP SERIES 02/06/2017
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Barco DP2K SLP Series Specifications

General

Brand	Barco
Model	DP2K SLP Series
Category	Projector
Language	English