REGION DETECTION

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In the following experiment, the threshold is varied from 1 to 255 for each of the five pictures. The window is fixed to size 3.

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In the following experiment, the window is varied from 0 until the image turns entirely white. The threshold is calculated using a heuristic to minimize the in-class variance.

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Selected Images from varying the threshold

IMAGE 1, T=145
IMAGE 2, T=185
IMAGE 3, T=230
IMAGE 4, T=155
IMAGE 5, T=165

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Selected Images from varying the window

IMAGE 1, W=3
IMAGE 2, W=2
IMAGE 3, W=1
IMAGE 4, W=3
IMAGE 5, W=3

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Robert Banfield