CinePlex v3 Manual - Plexon Inc

If Pure Colors is not selected, the color desired can be selected by clicking in
the color display and positioning the cursor over a pixel of the desired color.
CinePlex Studio changes the mouse cursor to cross hairs and a magnified
view of the screen pixels appears in a window on the image.
Position the cross hairs over a colored pixel that best represents the color of
the object to track. Click the left mouse button to set the color.
8 If the cursor does not track the object accurately, in the Reflective Colors
Tracker area, adjust the Threshold for Color 1 slider until the cursor tracks
accurately.
Note:
If the cursor does not track accurately with the sensitivity at maximum,
change the color or adjust the sharpness and saturation.
9 To track additional colors, repeat Step 5 through Step 8 substituting the Color
2 or Color 3 controls for the Color 1 control and the Threshold for Color 2 or
Threshold for Color 3 controls for the Threshold for Color 1 control. Also
see “Setting the Threshold” on page 87.
10 After completing the previous steps, verify that the configured CinePlex Studio
system looks like the following illustration, which is set up to track three
colors.
2.9.6.1 Setting the Threshold
CinePlex Studio can locate an object of a specified color by the color contrast
between the desired color and the threshold setting. If the threshold setting is too
low, the image could be similar to the one shown below. It will probably be necessary
to experiment with the setting to obtain the optimal value.
Version 3.0 87