Some years ago, we had an addition to our family and I took a lot of photos in that time. During the months I had taken nearly 2000 images of the newborn, but most of them had red-eyes on it.
This happens quite a lot with little children since their pupils don't close that fast and the light of the camera flash is reflected by the eye.
This is a companion discussion topic for the original entry at https://www.digikam.org/news/2008-11-10_new_kipi-plugin_automatically_remove_red-eyes_in_batch_mode/