function?blockfeat?=?BinHOGFeature（?b_magb_orientcell_sizenblock...??
????bin_num?weight_vote）??
%?計(jì)算1個(gè)block的hog??
%?weight_vote:?是否進(jìn)行高斯加權(quán)投票??
???
%?block的HOG直方圖??
blockfeat=zeros（bin_num*nblock^21）;??
???
%?高斯權(quán)重??
gaussian_weight=fspecial（‘gaussian‘cell_size*nblock0.5*cell_size*nblock）;??
???
%?分割block??
for?n=1:nblock??
????for?m=1:nblock??
????????%?cell的左上角坐標(biāo)??
????????x_off?=?（m-1）*cell_size+1;??
????????y_off?=?（n-1）*cell_size+1;??
???
????????%?cell的梯度大小和方向??
????????c_mag=b_mag（y_off:y_off+cell_size-1x_off:x_off+cell_size-1）;??
????????c_orient=b_orient（y_off:y_off+cell_size-1x_off:x_off+cell_size-1）;??
???
????????%?cell的hog直方圖??
????????c_feat=zeros（bin_num1）;??
????????for?i=1:bin_num??
????????????%?是否進(jìn)行高斯加權(quán)?投票??
????????????if?weight_vote==false??
????????????????c_feat（i）=sum（c_mag（c_orient==i））;??
????????????else??
????????????????c_feat（i）=sum（c_mag（c_orient==i）.*gaussian_weight（c_orient==i））;??
????????????end??
????????end??
???
????????%?合并到block的HOG直方圖中??
????????count=（n-1）*nblock+m;??
????????blockfeat（（count-1）*bin_num+1:count*bin_num1）=c_feat;??
????end??
end??
???
%?歸一化?L2-norm??
sump=sum（blockfeat.^2）;??
blockfeat?=?blockfeat./sqrt（sump+eps^2）;??