This database is super fast since it only index 4 videos (total ~22 minutes) from Animegraphy
https://www.youtube.com/playlist?list=PLlts7S-MKOl3gyAkUSGp39Nsqy90nre_A
Each column represents one type of Image Descriptor.
From left to right, these are: ColorLayout EdgeHistogram JCD OpponentHistogram PHOG AutoColorCorrelogram CEDD FCTH FuzzyOpponentHistogram JointHistogram ScalableColor. Each of these image hashing algorithm has a different way of recognizing an image.
Hit this link and try out how they perform in different situation, such as flipping, cropping, or images with borders.
(This is run on a seperate quad core i7 server with 8GB RAM)