Epson EH-TW3800 用户手册

You can select "Image" - "Sharpness" or "Advanced" to adjust the images according to your own 
preferences. The adjustment screens for "Gamma" and "RGBCMY" can be displayed on the screen 
directly by pressing the corresponding buttons on the remote control.
The adjustment values can be stored in the memory so that you can retrieve them and apply them to the 
projected images at any time. (

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Use                   or        (UP or DOWN) to select the 
correction value that suits the connected equipment 
and your own preferences from "2.0", "2.1", "2.2", 
"2.3" or "2.4" , and then press       or       to confirm 
the selection.

Observe the gamma graph to check the result of the 
adjustment. 

When a smaller value is selected, the dark areas of 
images become brighter, but the lighter areas may 
become oversaturated. This is indicated by bulging 
in the upper portion in the gamma graph.

When a larger value is selected, the bright areas of 
images become darker. This is indicated by bulging 
in the lower portion in the gamma graph.

Differences between equipment may result in a 
slight variation in the coloring when images are 
projected, and you may want to adjust this. 
(Projection will stop temporarily during such 
adjustment.) There are two methods of doing so. 
One is to select one of the gamma correction values 
[2.0], [2.1], [2.2], [2.3], [2.4]. The other is 
customized adjustment, which is done with 
reference to the projected image or a gamma graph. 
The gamma graph's horizontal axis represents the 
input signal level and its vertical axis the output 
signal level.
Adjustment is not possible when "Color Mode" is 
set to "x.v. Color".

The hue, saturation, and brightness for each of the 
R (red), G (green), B (blue), C (cyan), M (magenta) 
and Y (yellow) color components can be adjusted.
Adjustment is not possible when "Color Mode" is 
set to "x.v. Color".