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Chapter  9: Airbor ne V ideo  Systems       259






























                             Figure 9.42  High-resolution test image.

                                The Canny edge detection was next. I had to experiment with the parameters to extract
                             the best edges. The result may be seen in Figure 9.44. This time you can observe the two tires,
                             the handlebar, and if you squint a bit, the seat. There are more non-target object edges in this
                             image, which I believe is due to a greater number of pixels that the algorithm attributed to
                             pseudo-edges.





























                             Figure 9.43  Outline edge detection of the high-resolution test image.
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