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After cropping, user can shift image position at H&V directions without changing image size. Usually, it
is for the video wall application to fine tune image position. In projector edge blending application, user
only changes Overlap value in one edge but not execute image shift.
Edge Blend is to merge the images from multiple projectors to become one seamless image.
The scaling factor between two adjacent images shall be the same. It means the image size
under the same resolution should be the same.
Geometry alignment is required before edge blending:
•
To let the image has the same grid size (same scaling factor in both horizontal and
vertical directions
•
To let images overlapped together in horizontal lines and vertical lines.
Sub-menu under [Edge Blend] menu
•
[Edge]: select the right edge and set overlap pixels
•
[Shift]: to shift image edge location and implement [Edge Mask] function for non-
overlapped edges with black background.
•
[Gamma]: select correct gamma for overlapped area and [Offset] compensation area
to eliminate banding effect.
•
[Corner]: to do precise [Offset] location alignment.
•
[Offset]: to do black level uplift in non-overlapped area to compensate light leakage in
projectors.
•
[Color]: to do White Balance correction for individual projector.
9.4
[Position]: shift image position without changing image
10
[Edge Blend] settings
