I submitted two new functions, "graycomatrix" and "houghtf". Please
try the demos and let me know if you see gremlins in the code.
Regards
Stefan
usage: P = graycomatrix(I, levels, distances, angles)
Calculate the gray-level co-occurrence matrix P = f(i,j,d,theta)
of a gray-level image.
P is a 4-dimensional matrix (histogram). The value P(i,j,d,theta)
is the number of times that gray-level j occurs at a distance 'd'
and at an angle 'theta' from gray-level j.
'I' is the input image which should contain integers in [0,
levels-1], where 'levels' indicate the number of gray-levels counted
(typically 256 for an 8-bit image). 'distances' and 'angles' are
vectors of the different distances and angles to use.
usage: [H, R] = houghtf(I[, angles])
Calculate the straight line Hough transform of an image.
The image, I, should be a binary image in [0,1]. The angles are
given in degrees and defaults to -90..90.
H is the resulting transform, R the radial distances.
See also: Digital Image Processing by Gonzales & Woods
(2nd ed., p. 587)
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