DVS Clipster User's Guide download pdf (Page 93)

6-5

Miscellaneous

6.2 Color Space Conversions

According to the specifications a DCDM/DCP should be converted and

saved in the X’Y’Z’ color space. The most important concept about a

color space conversion is, that you should know the source material

that you want to process. The properties of the clips added to the bin

and used in the timeline (context menu of bin clip » Properties…)

must reflect these, i.e. they have to match the properties of the material

on the storage. For a DCI Mastering DVS recommends that the timeline

of the Edit Tool consists of clips in a single color space only.

Furthermore, when using the digital cinema delivery tool or manually

finalizing to digital cinema content, the color space of your material in

the timeline has to be specified further by choosing the correct color

profile (color type) for the source material in the timeline. With the dig-

ital cinema delivery tool it can be set in the configuration step for the

source type (see section “Source Type” on page 3-11). When convert-

ing to digital cinema content manually, it can be found among the

JPEG2000 encoding parameters (see section “JPEG2000 Options” on

page 6-9). This way the DVS software will know how to interpret the

color space of your video material in the timeline.

Once these two settings (i.e. the bin clip properties and the color pro-

file) are set properly, the color space conversion(s) will be performed

correctly during the creation of the digital cinema content.

Particulars for a DCDM Conversion

The color space conversion for a DCDM is performed via a 3D look-up

table (LUT). For this the clips in the timeline of the Edit Tool must be in

a single color space only.

When using the digital cinema delivery tool, you can choose between

predefined 3D LUTs or a LUT of your own (see section “Source Type”

on page 3-11). A predefined 3D LUT can be selected by choosing one

of the color profiles/types detailed in the source type configuration

step.

To use a 3D LUT of your own it must be applied to the timeline the usu-

al way. Then, with the appropriate option selected in the digital cinema

delivery tool, it will be used for the DCDM conversion.

When converting to a DCDM manually, you have to select the 3D LUT

that should be applied to the DSM material in the finalize dialog (see

section “Creating a DCDM Manually” on page 5-2) the usual way to

set a 3D LUT. DVS delivers several predefined LUT files together with

the DVS software that may be suitable for the color space conversion.

This way you can also apply a 3D LUT of your own.

With this, a 3D LUT that has been applied to the timeline al-

ready (i.e. via the output settings) will be overwritten.

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DVS Clipster User's Guide Page 93

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