Using gimp the lasso selection tool can be used to select
the red eye region (zoom in first). Then the Channels dialogue is used
to de-select Green and Blue. Finally choose Desaturate from the menus
a few times and that should fix any red eye.
Support further development by purchasing the PDF version of the book.
Other online resources include the
Data Science Desktop Survival
Books available on Amazon include
Data Mining with Rattle
Essentials of Data Science.
Popular open source software includes
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