ICE – it was software developed by Nikon to get rid of dust on your slides. Magic! The dust just was removed. Gone! Amazing?! You bet! Do you care? No! You don’t use slide film and you aren’t scanning and dust is dust, but what do you care? I would have to blow away (dust) and clean each slide before scanning. I don’t understand how it works and the dust disappears. But, I can sure appreciate that a daunting task was made easier by software written to make magic happen. And, yes, this was a terribly overexposed image used for illustrative purposes. I don’t understand how it works. I consider myself an end user. It works. Thank you very much.