MacroSystem Bluebox World - Manual (Page 23)

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Chapter 7
The individual Bluebox World effects
7.1 BB Change Chroma
(Image Processing)
Replaces a specific color or color area within a
video scene by another, freely selectable color.
The following settings are possible:
• Color selection
A rectangle whose position and size can be
freely selected encloses the largest possible
area of the colors that are to be replaced. The
rectangle should enclose the brightest and
darkest possible areas of the colors that are to
be replaced.
• Color span
The “Color span“ slider specifies how far the
color or hue may diverge from that of the
selected area.
• New Color
The new color can be selected from the color
box. Any archived color is also available. The
selected color is replaced by the new color.
• Method
Two methods are available for color exchange.
The “Color“ method replaces precisely the
selected color or color range with the new
color. This involves exchange of all the color,
brightness and saturation information. The
“Shade“ method on the other hand replaces
only the hue itself, leaving both brightness and
saturation unchanged.
7.2 BB Separate Chroma
(Image Processing)
Divides the video scene into two color regions, a
region with freely selectable color and a region
that contains all the other colors. The color
saturation for these two color regions can be set
independently over the range from 0 % (black
and white) up to 200 % (intensive colors).
The following settings are possible:
• Color selection
A rectangle whose position and size can be
freely selected encloses the first color region,
i.e. the region of colors for which the color
saturation is to be strengthened or weakened,
separately from all other colors.
• Color span
The “Color span“ slider specifies how far the
colors may diverge from the selected area.
• Saturation 1
Allows the color saturation of all the colors that
have been selected under color selection to be
set over a range from 0% (black-and-white) to
200% (intensive colors).
• Saturation 2
Allows the color saturation of all the other
colors in the video scene to be set over a range
from 0% (black-and-white) to 200% (intensive
colors).
7.3 BB Mask Rectangle
(Image Processing)
Places a colored rectangle or a colored frame
with a freely selectable transparency over a
video scene or over a section of the scene.
The following settings are possible:
• Select Area.
A rectangle whose position and size can be
freely selected is set to enclose the area of the
video image that is to be replaced by a freely
selectable color (mode:“In“) or that is to be
surrounded by a freely selectable color (mode:
“Out“).
• Mode
Indicates whether the effect is to be applied to
the internal region or the external region of the
video scene.
• Color
The color of the internal or external image
region can be selected from the color box. Any
archived color is also available. All the image
information in the selected area is replaced by
the new color. The alpha value indicates the
transparency of the new color.