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I have a small program that compares one face to a folder of faces, about 1000 faces. Im using FisherFaceRecognizer and it works decent so far despite it takes 10 minutes to return a result. The end game for this program is to have a database of about 30k faces. What can I do to optimize a little better to help speed up a single search and how should I approach comparing 30k faces without it taking an hour? Would a database of some sort help instead of loading all the images in every time?

I have a small program that compares one face to a folder of faces, about 1000 faces. Im using FisherFaceRecognizer and it works decent so far despite it takes 10 minutes to return a result. The end game for this program is to have a database of about 30k faces. What can I do to optimize a little better to help speed up a single search and how should I approach comparing 30k faces without it taking an hour? Would a database of some sort help instead of loading all the images in every time?