Circular Bands/Artifacts on Timelapse Video?
- Thread starter semajha
- Start date
deltoidjohn
Veteran
Looks like a codec somewhere along the line is struggling with a gradual colour shift. Are you seeing this straight out of the camera or only after editing/exporting?
When you say timelapse do you mean you took still photos at certain intervals and stitched them together, or did you just speed up a video clip?
When you say timelapse do you mean you took still photos at certain intervals and stitched them together, or did you just speed up a video clip?
Okay, I shot these stills sometime last month so I'm not sure if I can remember all the settings correctly. I believe I had my camera settings at, Standard, Fstop 8, ISO 100, Shutter open for 20 sec. , picture quality was set to the highest .jpeg quality and with an interval of 3 sec. in between each shot. Lens was the Tokina 11-16.
Deltoidjohn, I'm not seeing this straight out the camera. I took these as stills and stitched them together using Quicktime Pro 7, and I tryed different framerates and settings with no luck. I mean all the pictures look fine until I stitch them together.
Deltoidjohn, I'm not seeing this straight out the camera. I took these as stills and stitched them together using Quicktime Pro 7, and I tryed different framerates and settings with no luck. I mean all the pictures look fine until I stitch them together.
That's banding, and it comes from using a compressed codec. You might want to try and shoot in RAW format for time lapse, since that gives you the highest quality still images the camera can create. Now, the banding may come from the conversion from JPEG stills to whatever video codec, or it may be a result of compressing the video for the web. When does it first appear in your workflow?
And when you use QT to assemble the stills into a time lapse video, what video codec are you using?
And are you converting it again after that? If so, to which codec?
As a side note, frame rate will have absolutely nothing to do with this... it's all in the amount of color information the video contains, which is compression and data rate.
If you don't see it on the JPEG then it's happening on the codec compression. Even if you shoot Raw or Jpeg it shouldn't matter.
You can also try to up your bitrate on the compression output on the movie, ofcourse that isn't easy when uploading to the net because you can only go so high before it will start to stutter on playback.
Another important question
1) what are you editing with? codec?
2) timeline settings?
3) export settings? and what program are you using to compress your movie?
Banding also happens when there is a gradient in the image, on compression the detail gets lost. Looks like you had a high amount of detail in the sky that had a cool gradient. Changing compression settings on export should fix your problem or if not you might have to adjust your image in post. Or both.
You can also try to up your bitrate on the compression output on the movie, ofcourse that isn't easy when uploading to the net because you can only go so high before it will start to stutter on playback.
Another important question
1) what are you editing with? codec?
2) timeline settings?
3) export settings? and what program are you using to compress your movie?
Banding also happens when there is a gradient in the image, on compression the detail gets lost. Looks like you had a high amount of detail in the sky that had a cool gradient. Changing compression settings on export should fix your problem or if not you might have to adjust your image in post. Or both.
