NEC NP-P401W User Manual download pdf (Page 192)

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8. User Supportware

❹ Projecting an Image from an Angle (Geometric Correction

Tool in Image Express Utility Lite) (not supported by PE501X)

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177, 179)

• 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173)

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

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

 The“4-pointCorrection”window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

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NEC NP-P401W User Manual Page 192