Speed improvements (reuse of arrays, optional downsampling, call to computeBlockSSIM is now static) Fixed bug (for non RGB pictures pixel value may be negative => no 0xFF mask).
Speed improvements (reuse of arrays, optional downsampling, call to computeBlockSSIM is now static)
Fixed bug (for non RGB pictures pixel value may be negative => no 0xFF mask).

rukistar/kanzi,sharkkid/kanzi,rzel/kanzi,rzel/kanzi,rzel/kanzi,rukistar/kanzi,rukistar/kanzi,Sputuks3/kanzi,Sputuks3/kanzi,sharkkid/kanzi,sharkkid/kanzi,Sputuks3/kanzi