Carlos E. R. wrote:
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 ;-)
It's only 40500, you can surely do that before Christmas? :-)
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.
How about this - split your video into jpegs, then start with #1 and compare with #2,3,4,5,6,7.... until you see a difference? -- Per Jessen, Zürich (25.1°C) http://www.hostsuisse.com/ - virtual servers, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org