docs: public static InterleavedS8 convert(InterleavedF32 input, InterleavedS8 output) {
  		if (output == null) {
  			output = new InterleavedS8(input.width, input.height, input.numBands);
  		} else {
  			output.reshape(input.width,input.height,input.numBands);
  		}
  
  		// threaded code is not significantly faster here
  		ImplConvertImage.convert(input, output);
  
  		return output;
  	}