Cropping Notes; Letterbox Notes; Screen Presentation Coordinates; Simple Cropping Example - Christie CP2000 User Manual

BASIC OPERATION
Figure 3.11. Screen Presentation Coordinates
NOTE: Presently only a rectangular area can be defined, as shown above. A
trapezoidal adjustment or "electronic keystone" with sloped sides is not possible.

CROPPING NOTES:

Cropping is the
digital equivalent of filing aperture
plates in a film projector to perfect the
image "square-ness". For example, if
the bottom of the image appears
slightly wider than the top, activate the
bottom left or right cropping point in
the Screen menu and change the
coordinates to crop or "bring in" the
corner(s) of the image slightly—either
enter the specific coordinates, or adjust
with slidebars. Note that this is
cropping, not electronic keystone
adjustment. In Figure 3.25, cropping
simply corrects a display that overlaps
the available screen.
In most cases, cropping assumes that
the entire projector display area is in
use, thus the coordinates initially
define pixel locations on the Figure 3.12. Simple Cropping Example
projector's 2048 x 1080 display area.
Images that are significantly smaller in format may actually lie beyond the range of
one or more cropping adjustments, thus you will not see evidence of cropping on the
edges.
To correct a "bowed" edge so that it appears straight in the display, activate one of
the cropping "bow" points between two corner points and adjust the slidebar or enter
the specific x or y value desired.

LETTERBOX NOTES:

Letterboxing ensures that all image data is displayed and its
aspect ratio is maintained.
Use letterbox for virtually all normal operation. It ensures that all incoming data will
be displayed within your defined presentation area, and nothing will be discarded. If
desired, any "black bars" (unused pixels) could then be cropped off using the
cropping control. Although disabling the letterbox control also fills the defined
presentation area, any extra data beyond this area—whether top-and-bottom or left-
3-32 LIT MAN USR CP2000
020-100032-04 Rev. 1 (03/14)