Index exceeds matrix dimensions.

While executing C:\...\Objectness Code\object-proposals-master\endres\proposals\generate_proposals.m, I'm getting the following error:

Index exceeds matrix dimensions.

Error in MR8fast (line 44)
n2 = MR8filterNorm(n);

Error in MRS4fast (line 3)
[featvec] = MR8fast(im);

Error in getTextonImage (line 6)
feat = single(MRS4fast(imfilter(im, fspecial('gaussian', 3, 1))));

Error in processIm2ColorTexture (line 10)
textonim = uint16(getTextonImage(im, textonNodes));

Error in generate_proposals (line 63)
[image_data.textonim, image_data.colorim] = processIm2ColorTexture(im, col, tex);