High End Systems DL.2 user manual Keystone Correction Parameters, 118

CHAPTER 11

Global Functions

Keystone Correction Parameters

When you output an image from a			Top Left X	Top Right X
projector at an angle, the image
may appear skewed. Eight	Top				Top
Keystone parameters adjust the
	Left Y
image shape and compensate for					Right Y
this effect. You can control each of
the four corners of the graphics
output to reshape your image to a	Bottom				Bottom
form that projects correctly.	Left Y
					Right Y
Default DMX Value: 0 = no
keystone correction has been
			Bottom Left X	Bottom Right X
applied
		Original Content

Each corner has an x and a y

value that adjust and correct scale of the projection from any corner toward the image center on that axis.

Setting all Keystone X and Y parameters DMX values to zero will place the four corners of the image at the four corners of the projector output. Adjusting keystone x values toward 255 (100%) moves the respective corner x positions horizontally toward the center of that image edge. Adjusting keystone y values toward 255 (100%) causes the respective corner y positions to be moved vertically toward the center of that edge of the image.

Tip: These parameters can also be used to create interesting skewing as a design effect.

Keystone Top Left X DMX value = 85 Keystone Top Left Y DMX value = 85 Keystone Top Right X DMX value = 85 Keystone Top Right Y DMX value = 85

Keystone Top Right Y DMX value = 170

All other Keystone parameter DMX values = 255

118 DL.2 Digital Light User Manual