This paper provided an implementation of run length feature generation for analyzing image textures.

Authors provided source code, input images, and output feature values.  Replicating their work was extremely easy using the the provided test program.

I downloaded and compiled code in Linux with no problems at all.  The provided test program was very easy to use, although I had to make one modification in order to achieve the same results that were reported in the paper.  In itkScalarImageToGreyLevelRunLengthMatrixGenerator.txx line 109, I change

        OffsetType offset = offsets.Value();

to

        OffsetType offset = offsets.Value();
        offset[0]=offset[0]*-1;
        offset[1]=offset[1]*-1;

because the program seemed to be probing for runs 180 degrees from what was expected.

The code is for use with ITK.

Example code is provide, and is easy to use.

Code was easy to read and understand.

This software will definitely come in handy in our work analyzing CT scans of lungs.  I love how easy it was to use ...Test.cxx, although it took me a while to figure out why the results weren't matching up with the results in the paper.  We will be using this on 3D images, so I'm curious to see if this bug will also apply to 3D, and if the solution will be as simple as the solution to the 2D case.