DVDO iScan Guide de l'utilisateur télécharger pdf (Page 31)

DVDO iScan Mini - 4K Scaler / Video Enhancement

DVDO iScan Mini 31

Brightness & Contrast

This test pattern is composed of 4 quarter-screen

blocks. Two of the blocks have a background level of

standard black, and the other two blocks have a

background level of standard white. Embedded in

the black blocks are 3 bars. One is 4 IRE below

black, one is 1 IRE above black, and the third is 2

IRE above black. Embedded in the white blocks are 3

bars.

The ‘Brightness/Contrast’ test pattern will assist you

in setting up both the brightness (black level) and

contrast (white level) of your display. The

‘Brightness/Contrast’ test pattern is composed of 4

quarter-screen blocks. Two of the blocks have a

background level of standard black and the other

two blocks have a background level of standard

white. Embedded in the black blocks are 3 bars. One

is 4 IRE below black (blacker-than-black), one is 1 IRE above black, and the third is 2 IRE above black.

Embedded in the white blocks are 3 bars. One is 1 IRE above white (whiter-then- white), one is 1 IRE

below white, and the third is 2 IRE below white. The bottom two blocks differ slightly from these levels.

For the bottom two blocks, the blacker-than-black is at the lowest possible luma level and the whiter-

than-white bar is at the highest possible luma level. When the brightness and contrast are adjusted

correctly, you should be able to see the 1 IRE and 2 IRE above black bars on the black background and

the 1 IRE and 2 IRE below white bars should be visible on the white background. When the brightness is

adjusted correctly, black objects should appear ‘black’ with the details still intact and lighter areas should

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DVDO iScan Guide de l'utilisateur Page 31