Hi
i need to make this code to detect and track people it extract feaures and combine it i an array
pointrgb=detectSURFFeatures(gryI2,'NumOctaves',1,'NumScaleLevels',3,'MetricThreshold',5000);
[features22, valid_points22] = extractFeatures((gryI2),pointrgb);
[reg,dd] = detectMSERFeatures(rgb2gray(I2),'ThresholdDelta',1,'MaxAreaVariation',1);
[features33, valid_points33] = extractFeatures((gryI2),reg);
comfeat2{k,:}=[features22(:,:);features33(:,:)];
valid_pointscom{k,:}=vertcat(valid_points33,valid_points22);