User’s Manual 0020D1.01
Image AnyPlace IA-200
5 Keystone and Geometry Correction
5.1 Operation of Keystone Control
Keystone Control is activated by selecting the Keystone sub-menu from the Projection sub-menu
in the Advanced main menu. Keystone Control operates significantly differently from the IA-100
predecessor product’s Keystone Control.
Keystone Control can only be operated from the OSD Menu and Control Protocol (i.e. there is no
4 point equivalent to the eWarp Designer program used with IA-100). To use Keystone Control,
take the following steps:
1.
Ensure that the output resolution and aspect ratio of the IA-200 are the same as those of the
projector in use.
2.
Select one of the IA-200’s source channels.
3.
Play live content to the selected source channel (the best content is a complete white test
pattern; since the OSD of IA-200 is used to render the internal IA-200 test patterns, it is
unfortunately not possible to use the internal test patterns for this purpose) . Ensure that the
source content has sufficient contrast such that you can clearly see all of the corners of the
input.
4.
Adjust the position of the display to match the screen’s corners using the Keystone controls.
5.
The Keystone adjustment is adjustable in single pixel increments. Adjustments downwards
and to the left are taken as positive. Adjustments upwards and to the left are taken as
negative. Each control is active using only the Horizontal arrows (i.e. you cycle between H
and V adjustments using Up and Down Arrows only; you adjust the value of H and V
adjustments using the Left and Right Arrows only.
6.
Each corner of the display is separately adjusted. The total amount of adjustment is
interdependent with other concurrent Keystone adjustments (i.e. on a 1080p output, you can
adjust the H range of a given corner to a maximum deviation, if there is no concurrently
selected V deviation. You can also adjust a corner’s V deviation to 350 pixels if there is no H
deviation. If you have a combination of both H and V, both parameters are reduced from
their independent maxima. In practice, there is enough range to cover all practical situations.
7.
You can reset each corner independently or reset the entire display.
8.
Keystone parameters remain in effect until reset, or until they are changed or until a User
Warp Map is selected.
9.
Aspect ratio treatment remains in effect with Keystone Control.
5.2 User Warp Maps
If you have the IA-200_EX or IA-200_BEX version, then User Warp Maps (i.e. Geometry
Corrections for cylindrical, spherical or irregular surfaces ) created by the eWarp Designer 200
companion software program may be loaded into 8 locations, labeled Index 1 to Index 8. These
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