calculate textural features on a portable graymap
see also :
[-d d] [pgmfile]
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portable graymap as input. Calculates textural features
based on spatial dependence matrices at 0, 45, 90, and 135
degrees for a distance d (default = 1). Textural
(5) Inverse Difference Moment,
(6) Sum Average,
(7) Sum Variance,
(8) Sum Entropy,
(10) Difference Variance,
(11) Difference Entropy,
(12, 13) Information Measures of Correlation, and
(14) Maximal Correlation Coefficient.
Haralick, R.M., K. Shanmugam, and I. Dinstein. 1973.
Textural features for image classification. IEEE
Transactions on Systems, Man, and Cybertinetics,
IEEE Transactions on Systems, Man, and Cybertinetics,
The program can
run incredibly slow for large images (larger than 64 x 64)
and command line options are limited. The method for finding
(14) the maximal correlation coefficient, which requires
finding the second largest eigenvalue of a matrix Q, does
not always converge.
1991 by Texas Agricultural Experiment Station, employer for
hire of James Darrell McCauley.