Nec M420X [66/155] Projecting an image from an angle geometric correction tool in image express utility lite

3. Convenient Features

 Projecting an Image from an Angle (Geometric Correction Tool

in Image Express Utility Lite)

TheGeometricCorrectionTool(GCT)functionallowsyoutocorrectdistortionofimagesprojectedevenfroman

angle.

What you can do with GCT

• TheGCTfeatureincludesthefollowingthreefunctions

• 4-pointCorrection:Youcantaprojectedimagewithintheborderofthescreeneasilybyalignthefourcorners

ofanimagetotheonesofthescreen.

• Multi-pointCorrection:Youcancorrectadistortedimageonthecornerofawallorirregularshapedscreen

byusingmanyseparatedscreenstocorrecttheimageaswellas4-pointCorrection.

• Parameters Correction:Youcancorrectadistortedimagebyusingacombinationoftransformationalrules

preparedinadvance.

Thissectionwillshowanexampleforusewith4-pointCorrection.

Forinformationabout“Multi-pointCorrection”and“ParametersCorrection”,seethehelpleofImageExpress

UtilityLite.(→page55)

• Yourcorrectiondatacanbestoredintheprojectororyourcomputerwhichcanberestoredwhennecessary.

• TheGCTfunctionisavailablewithaUSBcable,wiredorwirelessLANconnection,andvideocable.

Projecting an Image from an Angle (GCT)

ThissectionwillshowanexampleforusewithUSBDisplay(usingaUSBcabletoconnectacomputerandthepro-

jector).

•

 TheUSBDisplayfunctionwillautomaticallydisplaythecontrolwindow

• ForavideocableorLANconnection,installandstartImageExpressUtilityLiteinyourcomputerbeforehand.(→

page43)

Preparation:Adjusttheprojectorpositionorthezoomsothattheprojectedimagecancoverthewholescreenarea.

1. Clickthe“ ”(Video)iconandthenthe“ ”button.

The “4-point Correction” screen will be displayed.

2. Clickthe“StartCorrection”buttonandthen“Start4-pointCorrection”button.

A green frame and a mouse pointer ( ) will be displayed.

• Four[•]markswillbeappearedatfourcornersofthegreenframe