Possible to detect "populated" level range with script?

Musicvid wrote on 7/25/2020, 4:13 PM

If I have a difference composite on the timeline, and only the range [0,16] is populated with non-zero pixels (output shadow noise), is it possible to identify exactly this range, such as for trimming only the noise with an Input Start filter? Different outputs will have different noise ranges, typically .005 to .010.


jetdv wrote on 7/25/2020, 6:44 PM

I'm not exactly sure what you're asking for but a script can't "see" the video and a script also can't see the histogram. It can apply the effect, though, and pick any preset or set OpenFX parameters.

Musicvid wrote on 7/25/2020, 7:35 PM

Yes, I suspected that levels detecion isn't possible, thanks for answering.