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- % function hogFeature = featuresHOGGrayScale( img, sbin );
- %
- % BRIEF:
- % Compute an array of extended HOG features for a given gray scale image.
- % Original implementation did not supported simply gray scale images.
- % Additionally, differs from the original implementation (featuresHOGorig.cc)
- % by not leaving a boundary of sbin pixels at the border of the image "unused".
- %
- % Advantage: k*sbin pixel result in k cells (orig: k-2)
- % Disadvantage: block normalization ill posed on boundary
- %
- % INPUT:
- % img -- (x,y) double array, input image
- % sbin -- double scalar, number of pixels each cell covers in x and y
- % direction
- %
- % OUTPUT:
- % hogFeature -- (x/sbin, y/sbin, 32) double array,
- % extracted hog array, last dim equals 0
- %
- % NOTE:
- % Don't miss to mex (compile) the .cc-file!
- %
- % author: Alexander Freytag
- % last update: 11-03-2014 ( dd-mm-yyyy )
- %
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