On 2016-08-15 08:13, Per Jessen wrote:
Carlos E. R. wrote:
And what can I use to compare thousands of individual photos automatically? I can't imagine mythtv doing that.
No, I doubt that very much :-)
imagemagick will help you "subtract" two jpegs and evaluate the result.
compare -compose difference 1.jpeg 2.jpeg diff.jpeg
Mmm.
I imagine two jpegs that are almost the same will result in one black jpeg, but I don't know how to test that (other than taking the jpeg part programmatically).
Well, yes, that's the problem, I can't visually test 45*60*15 images ;-) And the difference, if it exists, would be minimal. The video is all black, and hopefully a shooting star would be a white dot moving fast. Or rather more probably, nothing at all, 45 minutes of pure black. -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)