Matrox MXO2 Guide de l'utilisateur télécharger pdf (Page 144)

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Chapter 9, Setting Up Matrox Effects with Adobe Premiere Pro

Using the selective key graph

The selective key graph allows you to modify your selective key settings (Hue

Key

, Saturation Key, and Luma Key) directly in the graph. You can also

perform an auto key.

•

Map This is the default view when you first expand the graphical property.

You can drag the handles to move the indicator to different regions in the

graph to adjust the

Hue Key, Saturation Key, and Luma Key settings.

In order to see the indicator and handles, you have to enable the key setting you

want to use. For example, if you want to adjust the

Hue Key properties, you need

to click the

Hue button in the selective key graph or select the Enable option in

the

Hue Key numerical properties. In the following graph, the Hue properties

have been enabled.

•

Plot Click this button to plot the colors and luminance values that are

present in the current frame of your clip. You can drag the handles to move

the indicator to different regions in the graph to adjust the

Hue Key,

Saturation Key

, and Luma Key properties. The luma plot histogram shows

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Matrox MXO2 Guide de l'utilisateur Page 144

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