Fig. 8.


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Contours of manual segmentation in AR (red), QS (green), CH (cyan) and contours around regions of pixels that were classified differently by the MAP classifier (yellow). The image was taken on April 10, 2011 at 00:00:07 UT. Several misclassifications seem to be due to inaccuracies in the manual segmentation: 1. The small dark region in the SE quadrant was classified by the MAP classifier as CH instead of QS. 2. Some bright points that were manually segmented as QS or CH (when embedded in CH) but are more correctly labelled as AR by the MAP classifier. 3. Near the boundaries of the manual CH and AR segmentations some small regions were assigned to the QS class by the MAP classifier, which is arguably more correct for the cases shown in this figure.

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