Extensive colour artifacts in exports from Premiere Pro and Media Encoder

[Chris Tompkins]

Seeing those stills makes me think of:

CMYK color?
index color?
.gif files?

All of which should be converted to:

RGB

The video though? What was it shot on?

Chris Tompkins
Video Atlanta LLC

[Danielle See]

Thanks for your response

Both screenshots are of video footage so they are both RGB, sorry I failed to mention that. The video was recorded in HDV

This problem is extremely temperamental. Sometimes the artifacts are there and then in a new export those same ones aren’t, but some new ones have surfaced. I’ve tried opening the footage in a new sequence and a new project, but the same thing happens.

Maybe I should mention, a couple weeks ago, our exports created red flashes, like dropped frames every now and then, when on the timeline they didn’t exist. Those aren’t occurring anymore…

What a pain:(

[Cg Chase]

I’m having a similar problem, very temperamental though. I have a video that I have been working on for the past week, up until just today (day 6 working on this) I didn’t have this problem in any export.

However today, on a Title screen (no video, just Title on stage). I read that the Fast Color Correction could help with this. It did, except that the artifact occurred just before the time it did previously (i.e., after the color correction).

Yet, I still have this little white “artifact” appear for just a half of a second. Like a squiggle at the bottom of the title. BUT this “squiggle” is NOT on the timeline in Adobe Premiere CS6.

Frustrating!

Everything is RGB from what I can tell. Video is 720×480. Title is written using the Adobe Caslon font (blue fill with a white around it). Exporting to NTSC DV using H.264.

Any ideas for resolving this?

Thanks!

[Danielle See]

Hey

I figured out that if you don’t check “Render Maximum Depth” under the bitrate settings, then these artifacts aren’t visible. Check the “Maximum Render Quality” option at the bottom of your render settings box.

Hope this works for you?
Good Luck!

[Tom Daigon]

Good to know. Thanks Danielle

Tom Daigon
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[Cg Chase]

Funny but that option was not checked to begin with on my project. I am assuming you mean that I should Not have this option checked (the Maximum Render Quality), which I do not (did not).

However, I learned to try the Adjustment Layer (as a video track at the top) and then apply the “Three Way Color Corrector” to remove artifacts. This worked in that is removed the first two that I had, but then a new one appeared.

I ended up removing all overlapping Video Transitions so that it was a clean cut between the scenes of my project where this artifact (and the first two) were appearing. And I even made the audio adjust prior to this, so that I didn’t even have any keyframes between states or transitioning for the audio. Finally the artifacts disappeared (yay!).

Pretty frustrating as I had no notion of what to try as these artifacts were not on the timeline obviously. I dealt with this same issue before, years ago with an older version of Premiere, but I could not recall how I removed the artifacts.

Thanks for responding.

[Stephen Montgomery]

I get this exact same issue with most clips in Adobe Media Encoder CS5. Most clips are Avid DNxHD but it also does it with other codecs. It is the “Render At Maximum Depth” tick box that affects it, If i have that box ticked, then i get issues. I can drasticly reduce (but not get rid of) the issues by using a colour legaliser effect on my sequence before exporting. There must be something machine specific though because i can use the same Adobe Media Encoder preset on another machine without issue.