better for single face detection, and shows '0' or '1'
better for single face detection, and shows '0' or '1'

tgfrerer/ofxCv,cran-io/ofxCv,SpecularStudio/ofxCv,xionluhnis/ofxCv,tgfrerer/ofxCv,arturoc/ofxCv,wenbo001/ofxCv,DHaylock/ofxCv,anthonykylai/test1,DHaylock/ofxCv,cran-io/ofxCv,anthonykylai/test1,danoli3/ofxCv,xionluhnis/ofxCv,wenbo001/ofxCv,tgfrerer/ofxCv,SpecularStudio/ofxCv,wenbo001/ofxCv,cran-io/ofxCv,DHaylock/ofxCv,SpecularStudio/ofxCv,danoli3/ofxCv,HalfdanJ/ofxCv,xionluhnis/ofxCv,HalfdanJ/ofxCv,HalfdanJ/ofxCv,arturoc/ofxCv,arturoc/ofxCv,anthonykylai/test1,danoli3/ofxCv