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Graphic has artifacts

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Michael Prescott
Graphic has artifacts
on Nov 10, 2010 at 5:30:19 pm

I prepared a title card in Photoshop at 1024 x 576, text on transparent background. When it's composited in FC (on V2 above V1), white artifacts are appearing around the edge of the letters. When I re-sized the same graphic for the NTSC version (720 x 480), there are no artifacts. Any idea what might be causing the problem?

PAL version:


NTSC version:


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Terry Ballard
Re: Graphic has artifacts
on Nov 10, 2010 at 5:43:28 pm

Michael,
I've had better success using .tiff files. Try that...

Terry B

MacPro two 2.26 Ghz Xeon
MacPro RAID card
AJA Kona3 video capture interface
AJA K3 breakout box
FCP & CS4


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Dave LaRonde
Re: Graphic has artifacts
on Nov 10, 2010 at 6:01:21 pm

Those white artifacts look like incomplete erasures. Is that possible?

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Michael Prescott
Re: Graphic has artifacts
on Nov 10, 2010 at 6:33:37 pm

Terry: the above pictures were JPEG's only for posting here; its not what was used in the project. But I just discovered something interesting: the NTSC graphic was indeed saved as a TIFF, but the PAL was saved as a PNG. I had always thought the consensus in this Forum was to use PNG but I'll redo it as a TIFF to see if its better.

Dave: the graphic was created with a text only on a transparent background so, in Photoshop, nothing was erased. In fact, I used the exact same file for each version, only resizing for the proper aspect ratio.


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Michael Gissing
Re: Graphic has artifacts
on Nov 10, 2010 at 10:34:45 pm

What codec were the timelines? DV will make a mess of your graphics. Also PAL is 720 x 576 so you would be better making the correct aspect and not relying on FCP to do the anamorphic distort.


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Michael Prescott
Re: Graphic has artifacts
on Nov 12, 2010 at 3:08:33 am

The timeline codec was 8-bit uncompressed 4:2:2. I thought this would actually help the graphic look better. Also, the Sequence frame size was 720x576 even though the original graphic was created at 1024x576.


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