C*Pix SDC2000 Instruções de Operação descarregar pdf (Página 125)

SDC 2002

4.3. TK Config Menu

4-39

Operating Instructions - Rev. 1 / 6.2003

”TVLEV” Image data maintains the TV video levels:

black level 64

(10

bit)

white level 940

(10

bit)

high lights up to 1019

(10

bit)

Characteristics:

Note!

The CRT gamma is normally switched on

- main menu “Color”, submenu “Col Set”

- but may be switched off for pure linear video signals.

data output-code value

Lokuptable input

1024

TV-LEV (CRT on)

TV-LEV (CRT off)

Description

TV LEV This lookup table maps the image data according to standard video levels (refer-

ence black and white) and provides highlight range beyond the reference levels.

This is the easiest way to transfer film content into data, as specially calibrated

monitors are not required on the downstream workstations. Most applications can

import data mapped to standard video level and visualize it correctly.

This transfer mode with CRT GAMMA ON is the best choice if final grading will be

performed on Specter Virtual DataCine VDC.

To set up the telecine for transfers in TV LEV mode the colorist works the familiar

way:

The DataCine is running in SDTV or HDTV video mode, color correction is done

using the standard video monitor as a reference.

With the monitoring set to the output stage while still in video mode, it is worth not-

ing that 0% (black) on the waveform monitor will be mapped to 64

, and 100%

(white) will be mapped to 940

when the image data is transferred.

For any signal peaks above 100% there is a little headroom up to 1019d. The val-

ues between the black and white reference levels will be represented with a linear

or CRT characteristic, depending on the CRT GAMMA setting on the film scanner.

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