Barco Projector Toolset Spezifikationen PDF herunterladen (Seite 135)

8. Configurator, Projector adjustment settings

Image 8-25

White balance : In the projector, we will set the contrast for each color until we get a 100% light output

picture when projecting a 100% white image (image A)

Black balance : In the projector, we will set the brightness for each color until we get a 0% light output

picture when projecting a 100% black image (image B).

The changeover from min to max is indicated by the apparition of bright spots also called

“digital noise”

An alternative to a full screen White/black pattern is the standard gray scale pattern, the

white bar will be used for white balance and the black bar for black balance.

Image 8-26

Black balance

1. Select a window and click on Adjust (a). (image 8-27)

The Input dialog box opens (b).

2. Click on Input balance (c).

A question dialog box is displayed (d). This box announces that special lookup tables are needed while

adjusting input balance. Click Yes to load these tables. A second question window opens (f) to ask if

the 2 bit test pattern must be switched on.

3. If the pattern must be switched on, click Yes (g).

If no pattern must be switched on, click No.

When yes or no is clicked, the input balance adjustment window opens (h).

4. Adjust the red black level on a minimal value

5. Select Black balance blue and adjust the blue black level on a minimal value.

Note: This minimal value is not necessary , provided that the 2 other colors are not inﬂuencing too

much the color to be adjusted, in fact the aim is to minimize the effect of the two other colors

since there is a risk of reaching too soon the 50% transition due to the contribution of these two

other colors signals.

R5976924 PROJECTOR TOOLSET 16/04/2009

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Barco Projector Toolset Spezifikationen Seite 135