2011

Table Of Contents
To:Use:
Set the amount of blur to apply in direction of the forward
vectors (before taking into account the rotation parameter).
Length
The amount of blur applied per pixel is also modulated by the
length of the vectors.
Set the amount of blur to apply in a direction perpendicular
to the forward vectors (before taking into account the rotation
Width
parameter.) The amount of blur applied per pixel is also
modulated by the length of the vectors. It would often be left
at 0, so that the vector length would not affect it.
When enabled, changing the Length or Width parameter
causes the other one to change in the same proportion.
Link
Set the amount of vector rotation around their own origin.Rotation
Enable the reference vector offset. If reference is set, the vector
at the Reference Position is subtracted from all forwards vectors
Reference
in the image. The result is that the pixel at the reference pos-
ition will not be blurred, and so will pixels with similar forward
vectors.
Set the amount of blur to apply at the reference position. A
value of zero means that no blur should be applied. This is
Weight
the default. A value of one means to blur by the same amount
as the forward vectors at the Reference Position. This is equi-
valent to disabling the use of a reference vector offset. A value
of one half means to blur half as much as the forward vectors
at the Reference Position.
Set the nominal coordinates of the reference position. When
the reference is enabled, a manipulator is displayed in the
Reference Position X
and Y
player to allow the user to interactively set the reference pos-
ition by simply dragging the manipulator (click-drag-release).
The reference position can also be set using the Tracker.
396 | Chapter 17 Image Processing Tools