Identify a Specified Fish Species by the Co-occurrence Matrix and AdaBoost - Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing - page 101

Fig. 4 Body texture pattern selection area

Fig. 5 Body texture pattern of black bass

Fig. 6 Body texture pattern of crap

Difference variance is given by

k 2

n 1

i = 0

− n 1

j = 0 k · P x − y ( k )

−

= − ( )

DVA P x − y k (14)

Difference entropy id given by

n −

1
i = 0 P x − y ( k ) · log { P x + y ( k ) }

DEP = (15)