public int timeHorizontal_F32(int reps) {
   for (int i = 0; i < reps; i++) ConvolveNormalized.horizontal(kernelF32, imgFloat32, out_F32);
   return 0;
 }
 public int timeHorizontal_I8(int reps) {
   for (int i = 0; i < reps; i++) ConvolveNormalized.horizontal(kernelI32, imgInt8, out_I8);
   return 0;
 }
 public int timeVertical_I16(int reps) {
   for (int i = 0; i < reps; i++) ConvolveNormalized.vertical(kernelI32, imgInt16, out_I16);
   return 0;
 }