old_contents: #!/usr/bin/env python3
  import os, logging, string, subprocess, re
  
  def gimp(inputfile:'file', outputfile:'file',
           brightness, contrast, thresholdblack, thresholdwhite,
           gimp_path = '/Users/t/Applications/GIMP.app/Contents/MacOS/GIMP'):
  
      print "\n\n"
      print "Thresholdizing:"
      print "---------------"
      print inputfile + " into threshold file: " + thresholdfile
  
      contraststring = '(gimp-brightness-contrast drawable ' + str(brightness) + ' ' + str(contrast) + ')'
      thresholdstring = '(gimp-threshold drawable ' + str(thresholdblack) + ' ' + str(thresholdwhite) + ')'
      gimpcommand = '(let* ((image (car (file-tiff-load RUN-NONINTERACTIVE "' + inputfile + '" "' + inputfile + '"))) (drawable (car (gimp-image-get-layer-by-name image "Background")))) (gimp-selection-none image) ' + contraststring + ' ' + thresholdstring + ' (gimp-file-save RUN-NONINTERACTIVE image drawable "' + thresholdfile + '" "' + thresholdfile + '") (gimp-image-delete image))'
  
      if (not os.path.isfile(thresholdfile)):
          command = gimp_path + ' -i -b \'' + gimpcommand + '\' -b \'(gimp-quit 0)\''
          logging.debug(command)
          # print command
          os.system(command)
  
  
      # first get geotiff data from original
      logging.debug( string.join(["gdalinfo", os.path.abspath(inputfile)]) )
      geoText = subprocess.Popen(["gdalinfo", os.path.abspath(inputfile)], stdout=subprocess.PIPE).communicate()[0]
      pattern = re.compile(r"Upper Left\s*\(\s*([0-9\-\.]*),\s*([0-9\-\.]*).*\n.*\n.*\nLower Right\s*\(\s*([0-9\-\.]*),\s*([0-9\-\.]*).*")
      geoMatch = pattern.findall(geoText)
      # print pattern
      print "\n"
      print "Geodata obtained:"
      print "-----------------"
      print "W", geoMatch[0][0]
      print "N", geoMatch[0][1]
      print "E", geoMatch[0][2]
      print "S", geoMatch[0][3]
      print "\n"
  
      W = geoMatch[0][0]
      N = geoMatch[0][1]
      E = geoMatch[0][2]
      S = geoMatch[0][3]
  
      print "Applying to destination:"
      print "------------------------"
  
  gimp('test.tif', '/tmp/threshold.tif', -50, 95, 160, 255)
  
new_contents: #!/usr/bin/env python3
  import os, logging, string, subprocess, re
  
  def gimp(inputfile:'file', thresholdfile:'file',
           brightness, contrast, thresholdblack, thresholdwhite,
           gimp_path = '/Users/t/Applications/GIMP.app/Contents/MacOS/GIMP'):
  
      contraststring = '(gimp-brightness-contrast drawable ' + str(brightness) + ' ' + str(contrast) + ')'
      thresholdstring = '(gimp-threshold drawable ' + str(thresholdblack) + ' ' + str(thresholdwhite) + ')'
      gimpcommand = '(let* ((image (car (file-tiff-load RUN-NONINTERACTIVE "' + inputfile + '" "' + inputfile + '"))) (drawable (car (gimp-image-get-layer-by-name image "Background")))) (gimp-selection-none image) ' + contraststring + ' ' + thresholdstring + ' (gimp-file-save RUN-NONINTERACTIVE image drawable "' + thresholdfile + '" "' + thresholdfile + '") (gimp-image-delete image))'
  
      if (not os.path.isfile(thresholdfile)):
          command = gimp_path + ' -i -b \'' + gimpcommand + '\' -b \'(gimp-quit 0)\''
          logging.debug(command)
          os.system(command)
  
  gimp('test.tif', '/tmp/threshold.tif', -50, 95, 160, 255)
  
subject: delete geo stuff