NEC VT46 user manual Menu Descriptions & Functions, E-21, Image, Picture Management

Menu Descriptions & Functions

Picture

Adjusting Brightness, Contrast, Sharpness, Color, Hue and Picture Management.

Brightness	Adjusts the brightness level or the back raster inten-
	sity.
Contrast	Adjusts the intensity of the image according to the
	incoming signal.
Sharpness	Controls the detail of the image for Video.
Color	Increases or decreases the color saturation level (not
	valid for RGB).
Hue	Varies the color level from +/- green to +/-blue. The
	red level is used as reference. This adjustment is only
	valid for Video and Component inputs (not valid for
	RGB).

Picture Management

This option allows you to adjust neutral tint for yellow, cyan or ma- genta.

There are 5 factory presets optimized for various types of images, or you can set user adjustable settings.

Presentation .. Recommended for making a presentation using a PowerPoint file

Video	Recommended for regular picture such as TV pro-
	gram
Movie	Recommended for movie
Graphic	Recommended for graphics
sRGB	Standard color values
User	User adjustable

NOTE: When “sRGB”, “Graphic”, “Video” or “Movie” is selected, the bright- ness decreases slightly when compared to “Presentation”. This is not a mal- function.

User Adjust (when using User )

When selecting user adjustable presetting (User), the submenu will be displayed.

You can customize each gamma or color. To do so, first select “User” and press the ENTER button, and then proceed the following steps.

Selecting Base Setting <Base Setting>

This feature allows you to use white balance or gamma values as reference data to optimize for various types of images. You can se- lect one of the following five settings.

•Presentation

•Video

•Movie

•Graphic

•sRGB

Adjusting White Balance <White Balance>

This allows you to adjust the white balance. Brightness for each color (RGB) is used to adjust the black level of the screen; Contrast for each color (RGB) to adjust the white level of the screen.

Selecting Gamma Correction Mode <Gamma Correction> Each mode is recommended for :

Dynamic	For true color reproduction of natural tones
Black Detail ....	For dark portions of a picture
Natural	Normal settings

Image

Correcting Vertical Keystone Distortion [Keystone]

This feature corrects the keystone (trapezoidal) distortion to make the top of the screen longer or shorter to be the same as the bottom. Use the F or E buttons on the slide bar to correct the keystone (trap- ezoidal) distortion.

NOTE: The keystone angle can be corrected between 30 degrees upward and 30 degrees downward at a 0 degree-projection angle. Depending on the type of graphics being used, the picture may get blurred or keystone correction may not be possible when excessive keystone correction is used. The idea is, the closer you are to native resolution, the better image you will see.

Saving Vertical Keystone Correction [Keystone Save]

This option enables you to save your current keystone settings. Saving your change once affects all sources. The changes are saved when the projector is off.

E-21