// nearest neighbor search, using a given coherence set void nn_search(Img *destim, int di, int dj, const Kcoherence<K> &kset, int offx, int offy, unsigned &bestdiff,unsigned &bestidx) { for(int k=0;k<kset.n;k++) { int i,j; srcim->idx_to_ij(kset[k],i,j); i = srcim->wrapw(i+offx); j = srcim->wraph(j+offy); if(!srcwrap && (i<Nsize || i>=srcim->w-Nsize)) continue; if(!srcwrap && (j<Nsize || j>=srcim->h-Nsize)) continue; unsigned diff = neighbor_diff(destim, srcim, di,dj, i,j, Nsize); if(diff < bestdiff) { bestdiff = diff; bestidx = srcim->ij_to_idx(i,j); } } }