pgmtexture - calculate textural features on a PGM image
This program is part of Netpbm(1).
pgmtexture reads a PGM image as input and calculates textural features based on spatial dependence matrices at 0, 45, 90, and 135 degrees for a distance d (default = 1).
Textural features include:
Algorithm taken from: Haralick, R.M., K. Shanmugam, and
I. Dinstein. 1973. Textural features for image classification.
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 the Maximal Correlation Coefficient, which requires finding the second largest eigenvalue of a matrix Q, does not always converge.
Copyright (C) 1991 by Texas Agricultural Experiment Station, employer for hire of James Darrell McCauley.