062210 11
Date: 2/15/10
Firmware Version: 2.00 Build 051
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.
Main Menu > Input Adjust > Chromaticity
By default the Chromaticity is set to ‘Auto’, which sets the chromaticity based on the
input format. 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 including 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)).