Calibre UK LEDView 530 Operating Instructions Manual - page 30
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An offset for the blend region can be set-up as well. The region between the edge and the start of the
blend area is black. The total pixels of blend area and offset region is limited by the same amount of
pixels as for an offset of zero.
Note: Each LEDView unit needs to be provided with the exact same value for left and right blend
region. Top and bottom blend region have to be identical as well, but don´t need to have the same
value as left and right. The LEDView units do not communicate between each other and thus they
have to make an assumption for auto zoom calculations and that is overlap of the neighbouring (and
those beyond) projectors is identical.
3.9.5.
Blend Curve Type
Note: This feature and the corresponding sliders are only available when LEDView-510/530 is
operated in Projector mode to be set under Output/Display Type/Display.
The blend curve type menu allows to set the blending characteristics. For setting up the overlap the
Align Pattern should be used. Align Patter reduces the image intensity of each pixel in the blend area
by half. When the blend region set up through the blend width menu and the physical blend match the
S-Curve characteristics can be switched on. The image intensity is gradually reduced from the start of
the blend to the edge of the respective projector image. The S-Curve Value slider allows to control the
steepness of the S-Curve.
When a custom alpha map was loaded into the file system of the unit it is recognized at boot time and
the Custom Alpha Map menu item becomes available. Custom alpha maps can be uploaded through
the web or remote control API interface of HQView. The map can be switched on and off. The map is
combined with the Align or S-curve map internally generated. If that is not wanted Blend Curve Type
has to be set to off.
3.9.6.
Black-Level Uplift
Note: This feature and the corresponding sliders are only available when LEDView-510/530 is
operated in Projector mode to be set under Output/Display Type/Display.
This enables the user to provide a black level uplift to compensate for the additional light leakage from
multiple projectors in overlap regions. The black level uplift can be set for the 9 possible regions of the
image. Setting the black level uplift for the middle of an edge also sets the black level uplift for the two
adjacent corners, and if needed the corners can then be set individually. The sliders for all regions
which are not involved in edge blending for a given multiple unit configuration are greyed out, and the
black level uplift for all these regions can be set together using the Non-Blend Region parameter.
3.9.7.
Reduce Black-Level Uplift Width
Note: This feature and the corresponding sliders are only available when LEDView-510/530 is
operated in Projector mode to be set under Output/Display Type/Display.
The Black Level Uplift field may need to be adjusted to achieve a perfect result. There may be an area
of light leakage beyond the edge of the active image from the projector. With these controls the edges
of the black uplift region can be moved so they can be aligned with the edges of the area of light
leakage. In the case of projection under non-rectangular conditions the projection fields of adjacent
projectors are not aligned with the blend region. The corners of the non-blend region can be moved to
allow tracking of the edge of the projection field of adjacent projectors.