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ColorRegion-Operator  Example 

This operator detects a region of similar colors around a
specified centre.

Parameters

Name        Possible Values/Unit            Description

Input       STREAM, TEMP1, ..., TEMP8       input buffer
Ouput       STREAM, TEMP1, ..., TEMP8       output buffer
CentreX,                                    centre
CentreY
Tolerance   0.0...1.0                       tolerance-level which defines
                                            "similar" pixels
Mode
            INCLUDE                          remove all pixels which don't
                                             belong to the detected area
            EXCLUDE                          remove the detected area from
                                             the image


Notes
1) This operator is very useful for advanced Compose-operations or
   to modify colors of a specified region (e.g. to turn the eyes of
   a girl into green)
2) Currently this PlugIn is only in a beta-state.
   (The used complicated algorithms are not optimized yet.)
3) This PlugIn supports "parameter-dragging" from within
   the  ImageCoordinates-Window .