DVDO iScan Duo Owner's Manual page 38

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This document provides additional information for the DVDO iScan Duo configured with the latest
firmware. It is a supplement to the iScan Duo user manual.
1. Color Management System
This iScan Duo release incorporates several new features that can be loosely categorized as Color
Management System. These features include Color Gamut Controls, Chromaticity Controls and
Gray Scale Controls. The CMS features make the iScan Duo a useful tool for calibrating displays.
DVDO strongly recommends the use of a good colorimeter for display calibration.
The following sections describe new features:
Input Chromaticity
For accurate calibration of the display and the rest of the signal chain, it is important to correctly
set the input chromaticity for the iScan Duo. Chromaticity in this case includes the color and
white point values along the CIE (1931) color chart.
This new control is available in the Input Adjust menu:
By default the Chromaticity is set to 'Auto', which sets the chromaticity based on the input for-
mat. For example, if the input format is 1080p (HD), the chromaticity is based on BT.709.
The chromaticity can also be manually set from this menu, which contains standard profiles in-
cluding RGBs/709, NTSC, PAL/SECAM, SMPTE-C, CIE1931, AppleRGB and Adobe 1998.
When the Chromaticity is selected, the 'hint' area of the on-screen display shows corresponding
color and white point x, y values (red (xr, yr), blue (xb, yb), green (xg, yg) and white (xw, yw)).
Note: This control is currently not updating the chromaticity values in our input EDID
Output Chromaticity
Similarly, there are the Output Chromaticity controls which are required for accurate calibration.
This control is typically not required since the Color Gamut control can correct for incorrect chro-
maticity values provided by the display EDID. Users can think of this control as a coarse color
control, which may be useful when a meter is not available.
This new control is available in the Output Setup menu:
By default the Chromaticity is set to 'Auto', which sets the chromaticity based on the chromaticity
information in the display's EDID.
The chromaticity can also be manually set from this menu, which contains standard profiles in-
cluding RGBs/709, NTSC, PAL/SECAM, SMPTE-C, CIE1931, AppleRGB and Adobe 1998.
When the Chromaticity is selected, the 'hint' area of the on-screen display shows corresponding
color and white point x, y values (red (xr, yr), blue (xb, yb), green (xg, yg) and white (xw, yw)).
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Main Menu Input Adjust
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Main Menu Output Setup
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Chromaticity
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Chromaticity