Fixed km figure name.
Fixed km figure name.

andersbll/vlbenchmarks,andersbll/vlbenchmarks,vlfeat/vlbenchmarks,andersbll/vlbenchmarks,vlfeat/vlbenchmarks,CVML/vlbenchmarks,andersbll/vlbenchmarks,CVML/vlbenchmarks,vlfeat/vlbenchmarks,CVML/vlbenchmarks