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hy, what is this doing in imgproc/src/segmentation.cpp ?
for( i = 1; i < size1.height-1; i++, dptr += dstep - (size1.width-2)*3, mask += mstep*2 ) { for( j = 1; j < size1.width-1; j++, dptr += cn ) { int c0 = dptr[0], c1 = dptr[1], c2 = dptr[2]; mask[j*2 - 1] = cdiff(-3) || cdiff(3) || cdiff(-dstep-3) || cdiff(-dstep) || cdiff(-dstep+3) || cdiff(dstep-3) || cdiff(dstep) || cdiff(dstep+3); } }