CTL Script: “Specific Luminosity Area Correction”

[yasuo (Ohnishi, Yasuo)]

The method in below link is better way to remove dust in the sky.

How to fix many dust and scratch spots on film-scanned images at once with GIMP

When scanning film or photo prints, you may be annoyed by dust and scratch spots on them. Some film or flat-head scanners have a function that automatically removes dust and scratches, but this does not work with monochrome films or Kodachrome films that contain a high content of silver compounds. Also, if you scan them with a digital camera, there is of course no dust removal function. This is also true in scanned image of photo prints with scratch noise, etc. GIMP has a heal tool to remove th…