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authorNick White <git@njw.name>2019-01-30 16:42:02 +0000
committerNick White <git@njw.name>2019-01-30 19:19:44 +0000
commit6bb8ffba746fbcea8a8a359a32afdd591dab0f25 (patch)
treee3c43d69b64d9e6fdc3e09e2a8e80122271568ea /bucket-lines
parent26a61941cf0216202aee3378f17b05255170da17 (diff)
Add integral image functionality to enable massive speedup of Sauvola
Note that there are some very small differences to the output compared to the basic algorithm, but this doesn't make much difference. This is due to minor differences with the standard deviation calculation throughout, and with mean calculation at edges, for reasons I'm unclear about. WIP integral image speedup. mean is working Very WIP, but mean is perfect once full window is used Integral version all working! Remove debugging info Organise code better
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