bugfix in convolutional feature

features/fpfeatures/ConvolutionFeature.cpp

@@ -171,7 +171,7 @@ void ConvolutionFeature::getFeatureVector(
                     int ww = w;
                     if (x+u < 0 || x+u >= xsize) uu=-u;
                     if (y+v < 0 || y+v >= ysize) vv=-v;
-                    if (z+v < 0 || z+v >= zsize) ww=-w;
+                    if (z+w < 0 || z+w >= zsize) ww=-w;
 
                     //vec[k] = imgD->get(x+uu,y+vv,c);
                     vec[k] = data[c][(x+uu)+(y+vv)*xsize+(z+ww)*xsize*ysize];