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Line Tracking Experiments with NXTCam-v2

Below are results of few line tracking experiments.
The picture pairs below are screen dumps of NXTCamView.
In the pair, first picture is "Image Capture" as taken in NXTCamView, and second picture is tracking window for that view.

The black lines in the following pictures is actually a NXT sensor cable, and the red line is a plastic ribbon.
In line tracking mode, it is advisable to use non-reflective material.
Horizontal black like and a vertical black line
Horizontal black like and a vertical black line - capture
Horizontal black like and a vertical black line - Tracking
Horizontal red line and a vertical black line
Horizontal red line and a vertical black line - capture
Horizontal red line and a vertical black line - tracking
Vertical red line and a horizontal black line
Vertical red line and a horizontal black line - capture
Vertical red line and a horizontal black line - tracking
Two vertical black lines
Two vertical black lines - capture
Two vertical black lines - tracking