% function hogFeature = featuresHOGColor( img, sbin ); % % BRIEF: % Compute an array of extended HOG features for a given color image. % 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,3) 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 ) %