PARP Research Group University of Murcia, Spain


examples/movingEdgesDetector/movingEdgesDetector.cpp File Reference

A simple moving edge detector based on the Canny edge detector. More...

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Detailed Description

A simple moving edge detector based on the Canny edge detector.

This is an example application which combines several workers from the QVision, and a user-defined one, to perform detection of moving edges on an input video sequence.

Note:
The access operator () used in the instructions
 if (movementImage(edgePoint) > 10) 
and
 movingBordersImage(edgePoint) = 255; 
to obtain and set image pixel values is not the most efficient way of accessing image data provided in the QVision. The final application offers a slow frame rate for that reason. See section FastImageAccess for more info about speeding up performance on image access, which could make this example application run much faster.

Usage of the program.

Once compiled, the program should be used with this command line:
        ./movingEdgesDetector --URL=<path or url to video>

Parameters:
URL Video source identificator. See dynamic property URL for QVMPlayerCamera.
Author:
PARP Research Group. University of Murcia, Spain.

Definition in file movingEdgesDetector.cpp.




QVision framework. PARP research group, copyright 2007, 2008.