How to get rid of those lines?

[kcoleman805]

Yesterday I took some video and just uploaded it to my computer? As you can from the building so the right hand side, theres a bunch of lines that run across the buildings throughout the entire video. How do I get rid of those?

 

[Kilrah]

That's aliasing. What settings?

 

[kcoleman805]

That's aliasing. What settings?

what settings do i need to change to stop this from happening?

 

[halley]

In particular, this kind of aliasing is a moire effect. Hold some coarse fabric up to a screen door and slowly rotate... you'll see what I mean.

You can reduce the resolution, blur the whole shot, find new angles that are closer to such buildings, or accept that it's a part of video production. Any fine regular grid on buildings and other objects will align with the fine regular grid of camera sensors. All approaches to "un-moire" an image end up reducing image quality in other ways.

Ever since the days of early television, wardrobe specialists reviewed the guests' outfits for tweed, plaid and other weaving patterns that would look horrible when scanned into video.

 

[borislip]

Any chance you are filming at 1080p@60fps? Didn't test it myself, but it seems to be widely known on the web the Mavic is notoriously bad at 1080p@60fps and got a lot of visible Moire.

 

[Kilrah]

what settings do i need to change to stop this from happening?

As you've been asked, tell us your settings so we know if one is obviously responsible and we can tell you to change it...

 

[kcoleman805]

Video Size: 3840x2160 @ 30fps
Format: MOV
NTSC
White Balance: AUTO
Style: Standard
Color: D-Cinelike

 

[borislip]

Your attached PNG isn't 3840x2160. Any chance the moire pattern has been introduced by whatever did the resize?

 

[kcoleman805]

Your attached PNG isn't 3840x2160. Any chance the moire pattern has been introduced by whatever did the resize?

I just did a quick screenshot to show the lines. didn't take it of the whole screen.

 

[borislip]

Still, are you absolutely certain you've been looking at 1:1 footage, pixel to pixel, no resizing whatsoever, yet still see moire? Doubt one can do anything about it if thats the case. Doubt there are anti-moire filters for Mavic.

 

[borislip]

And now i am going to constantly look for Moire on my shots, something i didn't even tend to notice before, lol. ****, what did you do

Edit: d-a-m-n is a bad word and it is *-ed out?? Really?

 

[Kilrah]

Yes, resizing is very likely to cause aliasing. Even just viewing raw footage sized down for a lower resolution screen can introduce it depending on how well the player software's resizing algorithms are.
To be sure you need to view 1:1.

 

[Dusty3]

I don't see the aliasing in the MOV format, shooting houses, with Mavic Pro, but catch a screen shot and the saw-blade shows up big time. All settings I tried in still photo have the problem. I feel screwed by DJI.... Did not see the problem with the Phantoms...