Eizo CG220 manual Precision Color Reproduction, Bit Processing, Emulation Function

Precision Color Reproduction

14-Bit Processing

The ColorEdge CG220 incorporates a powerful new EIZO-developed ASIC (Application Specific Integrated Circuit) with 14-bit color processing capability (16 times more accurate than 10-bit). This allows a larger

number of grayscale increments, for grayscale rendering that is on a par with high-end CRT monitors. The result is a much greater degree of color detail, especially in dark areas and shadows.

14-bit v. 10-bit processing

standard monitor in a workflow, when different models are used in a multi-monitor setup, or for a remote proofing environment where the client, designer and printer want to be sure that their various monitors are displaying color the same way.

Factory Adjustment Of Gamma

Each ColorEdge CG220 monitor is adjusted at the factory to a gamma level of 2.2. This is accomplished by measuring the R, G and B gamma values from 0 to 255, then using the monitor’s Look-Up Table (LUT) with its 1,021-tone palette to select the 256 most appropriate tones to achieve the 2.2 value.

The benefit of factory adjustment is that precise, non-fluctuating

Error Rate (%)

2

1Internal 14-Bit Processing

0 -1

-2

-3

0 32 64 96 128 160 192 224 255

Tones (0 – 255)

Error Rate (%)

2
1				Internal 10-Bit Processing
0
-1
-2
-3
0	32	64	96	128	160	192	224	255
			Tones (0 – 255)

gamma values are necessary for the accurate display of colors. If colors are not based on specific values and cannot be adjusted, images will be displayed differently by different monitors. The ColorEdge CG220 pro- vides both precision and consistency, so you can be sure that the final product will look exactly the way you want it to.

22.2-Inch Screen Supports 1920 × 1200 Resolution

With 10-bit processing, the error rate is high in low tonal areas during calculation. With 14-bit processing, accuracy is significantly improved resulting in fewer conversion errors.

Emulation Function

To take full advantage of the 14-bit internal processing capabilities, EIZO has equipped the ColorEdge CG220 with an emulation func- tion. Simply by obtaining the ICC profile of another monitor and using EIZO’s ColorNavigator software, the ColorEdge CG220 can emulate its color characteristics. This is useful when another monitor is the

Monitor for Emulation

The extra-wide 22.2-inch screen supports 1920 × 1200 resolution (16:10 aspect ratio), meaning that it can display a two-page A4 spread with no clipped edges. In an application such as Adobe® InDesign®, the tool palettes can be displayed at the same time without overlapping.

Conventional monitor: working	ColorEdge CG220: full working space
space and tool palettes overlap.	and tool palettes are displayed simulta-
	neously with no overlap.

Obtain target monitor’s

ICC profile

CG220

Select ICC profile of target monitor in ColorNavigator

Emulate colors of target monitor

High Brightness With No Loss Of Detail

With conventional LCD monitors, when the brightness is raised, small details in the image are lost, but the ColorEdge CG220 gives you the best of both worlds — high brightness and sharp detail. This remains true even when viewing from off-center, thanks to the LCD panel’s 170° viewing angle and minimal color shift.

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