Gray Level Run Length Matrix Toolbox

The toolbox provide useful functions for extract high order run length features
Updated 18 Feb 2008

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This toolbox provides several state of the art high order run length matrix statistics for image analysis.

Currently supported features are:

1. 0,45,90,135 direction run-length matrix
2. Fully vectorized coding style
3. Inputs checking using MATLAB style
4. 11 various statistics include:Short Run Emphasis, Long Run Emphasis, Gray-Level Nonuniformity, Run Length Nonuniformity, Run Percentage, Low Gray-Level Run Emphasis, High Gray-Level Run Emphasis, Short Run Low Gray-Level Emphasis, Short Run High Gray-Level Emphasis,Long Run Low Gray-Level Emphasis ,Long Run High Gray-Level Emphasis.

Files include: grayrlmatrix, grayrlprops,and some utility functions

Importance Notice: You can freely use the source files for academic research purpose at your own risk.For commercial use, you should consult with the author for conditions.

If you use them for your academic research work,please kindly cite this toolbox as:
Xunkai Wei, Gray Level Run Length Matrix Toolbox v1.0,Software,Beijing Aeronautical Technology Research Center, 2007

Cite As

Xunkai Wei (2024). Gray Level Run Length Matrix Toolbox (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2007b
Compatible with any release
Platform Compatibility
Windows macOS Linux


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Version Published Release Notes

Source code available!