The area operated on by
the filter was chosen to coincide with the 20-m mean
boundary spacing between fine-level habitats in the area
(Mumby et al., 1999). Similar texture algorithms were also
created and implemented for CASI (2020 m area) and
Landsat TM data (9090 m area). After classification, a
single contextual decision rule was applied to areas of
fringing reef in which pixels classified as seagrass habitats
(classes 12 and 13 in Table 1) were converted to the
spectrally similar habitat class 2