the two value of "time" label in EXIF_tags mean what

Question

xiaovea opened this issue 4 years ago · 3 comments

Answer 1 · 2020-07-19T13:45:00.000Z

Dear xiaovea @xiaovea ,

Exposure time is a circular variable, and we use the (Sin(2pihour/24), Cos(2pihour/24)) to encode. Hoping it helps.

Best,
Hanwei

Answer 2 · 2020-07-20T02:22:42.000Z

thanks for your reply

Answer 3 · 2020-07-22T02:23:26.000Z

Typo: (Sin(2pihour/24, Cos(2pihour/24)) --> (Sin(2*pi*hour/24, Cos(2*pi*hour/24))