original_docstring: Performs a sigmoidal contrast stretch on input images.
  
          Keyword arguments:
  
          i -- Input raster file. 
          output -- Output raster file. 
          cutoff -- Cutoff value between 0.0 and 0.95. 
          gain -- Gain value. 
          num_tones -- Number of tones in the output image. 
          callback -- Custom functon for handling tool text outputs.
          
docstring: Performs a sigmoidal contrast stretch on input images.
  Keyword arguments.
  
  - Input raster file.
  output -- Output raster file.
docstring_tokens: Performs a sigmoidal contrast stretch on input images . Keyword arguments . - Input raster file . output -- Output raster file .
code: def sigmoidal_contrast_stretch(self, i, output, cutoff=0.0, gain=1.0, num_tones=256, callback=default_callback):
          """Performs a sigmoidal contrast stretch on input images.
  
          Keyword arguments:
  
          i -- Input raster file. 
          output -- Output raster file. 
          cutoff -- Cutoff value between 0.0 and 0.95. 
          gain -- Gain value. 
          num_tones -- Number of tones in the output image. 
          callback -- Custom functon for handling tool text outputs.
          """
          args = []
          args.append("--input='{}'".format(i))
          args.append("--output='{}'".format(output))
          args.append("--cutoff={}".format(cutoff))
          args.append("--gain={}".format(gain))
          args.append("--num_tones={}".format(num_tones))
          return self.run_tool('sigmoidal_contrast_stretch', args, callback)
code_tokens: def sigmoidal_contrast_stretch ( self , i , output , cutoff = 0.0 , gain = 1.0 , num_tones = 256 , callback = default_callback ) : args = [ ] args . append ( "--input='{}'" . format ( i ) ) args . append ( "--output='{}'" . format ( output ) ) args . append ( "--cutoff={}" . format ( cutoff ) ) args . append ( "--gain={}" . format ( gain ) ) args . append ( "--num_tones={}" . format ( num_tones ) ) return self . run_tool ( 'sigmoidal_contrast_stretch' , args , callback )
short_docstring: Performs a sigmoidal contrast stretch on input images.
short_docstring_tokens: Performs a sigmoidal contrast stretch on input images .
comment: """Performs a sigmoidal contrast stretch on input images.
  
          Keyword arguments:
  
          i -- Input raster file. 
          output -- Output raster file. 
          cutoff -- Cutoff value between 0.0 and 0.95. 
          gain -- Gain value. 
          num_tones -- Number of tones in the output image. 
          callback -- Custom functon for handling tool text outputs.
          """