If there is a complete self-resemblance on any part of the image, fractal dimensions on each part as A, B and C on the image are same.
CFD = ST / (FA / N)
CFD = Coefficient of variation of fractal dimension on divided image
Amm = fractal dimension of each devided area calicureted by the method 1.
FA = A11+A12+A13+...+A33+.....+Ann
N = number of divided parts ( n x n)
ST = standard deviation of Amm