Linux cli command pgmtexture

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command pgmtexture and provides detailed information about the command pgmtexture, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the pgmtexture.

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NAME 🖥️ pgmtexture 🖥️

calculate textural features on a PGM image

SYNOPSIS

pgmtexture

[-d d]

[pgmfile]

DESCRIPTION

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:

  • Angular Second Moment

  • Contrast

  • Correlation

  • Variance

  • Inverse Difference Moment

  • Sum Average

  • Sum Variance

  • Sum Entropy

  • Entropy

  • Difference Variance

  • Difference Entropy

  • Information Measures of Correlation

  • Maximal Correlation Coefficient

Algorithm taken from: Haralick, R.M., K. Shanmugam, and I. Dinstein. 1973. Textural features for image classification. IEEE Transactions on Systems, Man, and Cybertinetics, SMC-3(6):610-621.

OPTIONS

In addition to the options common to all programs based on libnetpbm (most notably -quiet*, see* Common Options ), pgmtexture recognizes the following command line option:

-d distance
The distance. Default is 1.

LIMITATIONS

The method for finding the Maximal Correlation Coefficient, which requires finding the second largest eigenvalue of a matrix Q, does not always converge.

SEE ALSO

pgm(1) , pamsharpness(1) , pamsharpmap(1) , pgmedge(1) , pgmminkowski(1)

AUTHOR

Copyright (C) 1991 by Texas Agricultural Experiment Station, employer for hire of James Darrell McCauley.

DOCUMENT SOURCE

This manual page was generated by the Netpbm tool ‘makeman’ from HTML source. The master documentation is at

http://netpbm.sourceforge.net/doc/pgmtexture.html

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