reduce training time by 25% time; save ~10% memory
reduce training time by 25% time; save ~10% memory

napsternxg/neural-style,zerolocker/neural-style,Tonsty/neural-style,ksemianov/neural-style,PaniniGelato/neural-style,zerolocker/neural-style,neilpanchal/neural-style,shenyunhang/neural-style,lipiji/neural-style,samim23/neural-style,VaKonS/neural-style,jcjohnson/neural-style,waythe/neural-style,n1ckfg/neural-style