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Pixelation of red graphics during export

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Hi,
I just encountered a strange effect that gives me a lot of headaches in the middle of a deadline. I've never seen this before:

I have a sequence with some graphics, and some of them have red in them. In the preview and in screenshots / single png frames, everything looks perfect, but when rendering, the exported clip has this strange pixelation at the red areas (see screenshot below: left is a single frame exported / right is screenshot from the exported sequence).

This happens when exporting in different compressed filetypes such as mp4, wmv etc. However it does NOT happen when exporting a large quicktime file. But when I recode it in Media Encoder, the problem returns.

I have documented this on two different workstations both running CC 2017.

the logo files are pngs, but the effect still happens when I save them as jpgs and place them into the sequence. Size of the logo does not matter, the only way to keep away the pixelation is if I use some other color than this red.

What kind of witchcraft is this? Can you help me? Thanks!

Dropbox - zzz_frame_red_pixelation.png

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M

Mr. Saarmets

Participating Frequently

The same thing here. In my case there is no difference if it’s png or pdf or pure text layer. If it’s red, it’s pixelated. At least with youtube 1080 export settings. So Adobe, help us please!

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Kevin J. Monahan Jr.

Legend

Mr. Saarmets,

In my opinion, you should try reducing the saturation in the reds. That can help you export red colors with delivery codecs like H.264.

Thanks,

Kevin

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Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio

M

Mr. Saarmets

Participating Frequently

Nope, tried saturation -10, -20, -30, still pixelated and -30 looks already unacceptable red...

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tracys93923541

Participant

I had the same problem, but then exported as H.264 and it worked. Was driving me crazy - fortunately that worked. Hope this helps.

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andrew douglass45169142

Participant

From my end, it looks like this problem has to do with red edges and with certain codecs like h264. I can confirm that here.

You can offset the logo to another colour with the Color Balance HLS (effect) than red or orange, and other colors appear fine. Render to a png sequence and it's also ok.

So must be bad settings with the codec, H264 on full settings still aliases badly for me, in my case red on grey. I haven't been able to find a workaround for H264 here.

I might just ignore it and let it be too.

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J

jomo5280

Participating Frequently

Any solutions on this? thanks!

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W

Wolfgang Lienbacher

Inspiring

Having the very same problem with a Red logo

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Averdahl

Community Expert

PNG as well? If yes, try PSD instead.

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C

caram35199389

Participant

Same problem here... please please let me know how to resolve this issue! Only problem is with reds, everything else looks great!

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P

paulv25552003

Participant

Also having this issue! It's crazy.

I have a png, which is solid black artwork on a white background. This png is multiplied over 2 colored backgrounds — one blue and one red. The colored backgrounds each wipe in at different moments during the sequence. No matter what format, render max quality, etc. the black artwork is always pixelated when sitting over the red. It looks perfect over the blue. Driving me bonkas.

FYI, I'm using CC2018 and have tried exports using AE and AME. The quality is perfect, regardless on background color, when viewed inside AE.

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