Panasonic AW-HS50N Executing the sampling automatically, Chroma key adjustments, Maker, Sample

3. Basic operations

3-3-7. Chroma key adjustments

How the chroma key is to be defined can be adjusted.

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Before proceeding with the adjustments, select “Chroma” as the key type using the menu item below.

[4]KEY Setup Menu

1.Key Type

As the chroma key, a key signal is created using a specific hue as a reference.

For instance, the key signal is created by detecting the color of the background from the image of a person standing in front of a specific background color, and another background is combined.

This unit uses an area system whose area is designated by a rectangular frame. The result of averaging the colors of the pixels inside that area is used as the chroma key reference color (key reference), and the maximum deviation from the average value is used as the radius of the chroma key oval.

Chroma keys faithful to the chroma space sample (area ￿ in the figure) can be generated.

Chroma

Hue Radius	Hue
Sat Radius

￿

Y

Oval-shaped chroma key

￿￿Executing the sampling automatically

By specifying the area where the background is to be inserted, the chroma components are sampled.

￿￿Maker

[6]ChromaKey Menu

1.Maker

This item is used to set the sample marker to ON to display the marker on the PVW image.

￿￿Marker Pos

[6]ChromaKey Menu

3.Marker Pos

This item is used to adjust the X coordinate, Y coordinate and size of the sample marker.

￿￿Sample

[6]ChromaKey Menu

2.Sample

Press the OSD/TIME dial to sample the hue components of the area selected by the sample marker.

￿￿When sampling is completed, the image obtained by combining the chroma key with the PVW image is output. (Set the PVW function of the key to ON.)

￿￿Sampling can be initiated without menu operations by using the USER buttons and OSD/TIME dial.

USER1: X coordinate, USER2: Y coordinate

USER3: Size, USER4: Aspect ratio

Press the target USER button to light the button’s indicator, and turn the OSD/TIME dial to adjust the sample marker.

When the OSD/TIME dial is pressed, sampling is initiated.

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