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Figure 55: Red colour band for marsh test 3
The values for the green colour band showed a similar level of distortion and, as
with the red colour band values form this area and unlike the other three samples
in this section, the count did not peak neatly in the expected range for marsh. The
blue colour band, however, was consistent with all other test polygons and
sampled imagery. This suggests that for small areas (below 2ha.) marsh is difficult
to detect automatically and could only be assigned the attribute when all other
values in the region of interest being analyzed have been assigned.
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