to 1.
  Create a mask.  blur  < source > ( image: Image blur_factor: int = 4  )    Blurs an image.  convert_to_grayscale  < source > ( image: Image  )    Converts a PIL image to grayscale format.  convert_to_rgb  < source > ( image: Image  )    Converts a PIL image to RGB format.  denormalize  < source > ( images: Union  )    Denormalize an image array to [0,1].  get_crop_region  < source > ( mask_image: Image width: int height: int pad = 0  ) 