text: import click
  
  from ocrd.decorators import ocrd_cli_options, ocrd_cli_wrap_processor
  from .shell import ShellPreprocessor
  from .skimage_binarize import SkimageBinarize
  from .skimage_denoise import SkimageDenoise
  from .skimage_denoise_raw import SkimageDenoiseRaw
  from .skimage_normalize import SkimageNormalize
  
  @click.command()
  @ocrd_cli_options
  def ocrd_preprocess_image(*args, **kwargs):
      return ocrd_cli_wrap_processor(ShellPreprocessor, *args, **kwargs)
  
  @click.command()
  @ocrd_cli_options
  def ocrd_skimage_normalize(*args, **kwargs):
      return ocrd_cli_wrap_processor(SkimageNormalize, *args, **kwargs)
  
  @click.command()
  @ocrd_cli_options
  def ocrd_skimage_denoise_raw(*args, **kwargs):
      return ocrd_cli_wrap_processor(SkimageDenoiseRaw, *args, **kwargs)
  
  @click.command()
  @ocrd_cli_options
  def ocrd_skimage_binarize(*args, **kwargs):
      return ocrd_cli_wrap_processor(SkimageBinarize, *args, **kwargs)
  
  @click.command()
  @ocrd_cli_options
  def ocrd_skimage_denoise(*args, **kwargs):
      return ocrd_cli_wrap_processor(SkimageDenoise, *args, **kwargs)
  