Flickering lines

comish wrote on 11/12/2008, 12:41 PM

I am doing a video that includes lines drawing for a building. The lines flicker or strobe in the video. How do I reduce this?

Comments

rs170a wrote on 11/12/2008, 12:49 PM

Try a very small amount of Gaussian Blur on the image/video.
Set Horizontal to 0.0 and Vertical to between 0.001 and 0.003.

Mike

comish wrote on 11/12/2008, 12:50 PM

Thanks I will try this, any other thoughts?

farss wrote on 11/12/2008, 1:08 PM

That's the best approach. You could also try adding the Unsharpen Mask FX after the Blur to bring back a hard edge on the lines. Always do this whilst monitoring with an external CRT
There are other ways but you have to build the image in a video aware graphics package, probably not something you'd want to contemplate.

Bob.

kentwolf wrote on 11/12/2008, 2:21 PM

>>...any other thoughts?...

Reduced image resolution can also help. Truth is a TV image doesn't look any different between a moderate resolution and a super high resolution. Not sure if this applies to HD material.

Usually the gaussian blur way works fine. Sometimes you need to use .001 vertical and horizontal.

If the blur is too prominently seen, reduced resolution works great.

johnmeyer wrote on 11/12/2008, 8:47 PM

Did you try the Event attribute "Reduce Interlace Flicker?"

UlfLaursen wrote on 11/12/2008, 9:04 PM

I have experienced that a render to 'best' also could help.

/Ulf