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View Full Version : Still image quality in Premiere


exobyte
28th June 2005, 21:22
I've been out of the scene for a while and I forgot the fix for this. I'm using Premiere 6.

I have an image and I used the motion filter on it to do a slow zoom in and pan. I played with the field options, I THINK I disabled field dominance for the project and output (as the output should be progressive), and set the better image resize option. I never seem to be able to get image quality as good as the original. It looks like it's either a bad resize or a bad deinterlace (but I disabled deinterlace when speed is less than 100%). I get stairsteps on angled lines and the image is kinda blurry. It is nowhere near as good as the original. Ideas?

Zarxrax
29th June 2005, 01:21
Premiere 6.5 and lower have crap resizing. It won't look good no matter what. Premiere Pro finally added a halfway decent (bilinear) resizing algorithm.

hendrix
29th June 2005, 02:54
use Photozoom Pro - it's resizing can't be beat, even beats Photoshop when it comes to resizing. I use it to batch resize a SD res tiff sequence to 1080p into Avid. Photozoom Pro uses S-Spline resizing which looks totally pimp.

exobyte
12th July 2005, 07:25
Sorry to drag this up again. I tried Premiere Pro. The resize it better, but now, with some images, parts when played look almost grainy/noisy. I can post a short vid if that would help.

Zarxrax
12th July 2005, 18:11
Perhaps the noise is due to compression with a lossy codec? Does it look noisy if you export uncompressed?

exobyte
12th July 2005, 20:07
I'm using huffyuv, so it's barely lossy. I'll try it with huffyuv set on lossless.

exobyte
13th July 2005, 22:52
It is NOT the codec, it's a resize issue. Some of the noise looks like moire patterns, which makes me think it's a resize issue.

Here is an uncompressed cropped section to give you an idea (<200k). what.avi (http://web.ics.purdue.edu/~dehrmann/what.avi)