docs: protected Planar<GrayF32> preprocess(Planar<GrayF32> image) {
  		// Shrink the image to input size
  		if( image.width == imageSize && image.height == imageSize ) {
  			this.imageRgb.setTo(image);
  		} else if( image.width < imageSize || image.height < imageSize ) {
  			throw new IllegalArgumentException("Image width or height is too small");
  		} else {
  			massage.massage(image,imageRgb);
  		}
  		return imageRgb;
  	}