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Post #1325208

Author
phoenixobia
Parent topic
Info: Gigapixel AI vs infognition Super Resolution / What to use to upscale SD to HD or 4K
Link to post in topic
https://originaltrilogy.com/post/id/1325208/action/topic#1325208
Date created
14-Feb-2020, 9:45 PM

FrankB said:

Sounds as if you tried a lot not to lose anything around upscaling. Really good is, that you exported from GPVE to lossless images, to collect these together afterwards. How well does the heart of this, GP Video Enhance, seem to work for you? I found it rather weak. Can you post some screens?

May I admit some things? I feel free to do so, maybe I can help:

So far the results are satisfactory to me as I have been comparing different upscaling methods. GPVE gave me more noticeable details and sharpness. I have comparison images ready if I can post here.

Of course, help is always appreciated as there are different ways of doing this and I’m constantly looking for ways to learn and improve, and here’s the place to share our experience and knowledge. 😃

As for IVTC, I haven’t tried Avisynth yet but I’ve read about it and would try it. I am aware of the change of pattern that can happen but I think that could be the case with any algorithm. As you mentioned, doing those by hand to produce progressive results is the best way to have perfect results but I don’t see how it can be fast. Shouldn’t that take forever? Please elaborate on that.

Second, I’m not sure I understand the part you talk about telecining while scanning.
If the original footage has been 24fps film/animation and telecined (3:2 pulldown) to 29.97fps which is the case with Laserdiscs, IVTC is the process to get rid of those added frames and turn it to 23.976fps. The results should have no jagged edges or as you say staircase-artifacts and no half resolution. My IVTC video has no rough edges if that’s what you mean, so please explain this.

Lastly, Having a lossless video at all times is good. I only do the last conversion after I’ve done all the edits and improvements and when there are no further edits needed, I encode it to my final video because Keeping the lossless files takes a lot of space.

Below are the images. It’s best to download and see at 100% but you can still see the difference here.
Beauty and the Beast LD upscale comparison 1
Beauty and the Beast LD upscale comparison 2
Beauty and the Beast LD upscale comparison 3
Beauty and the Beast LD upscale comparison 4
Beauty and the Beast LD upscale comparison 5
Beauty and the Beast LD upscale comparison 6
Beauty and the Beast LD upscale comparison 7
Beauty and the Beast LD upscale comparison 8
Beauty and the Beast LD upscale comparison 9