Topaz Video AI v3.1.6

i’m fortunate to have a sh*tty screen, i don’t see any difference :smiley:

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I’ve a calibrated monitor and se no difference in colour either.

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You can use an image editing tool to pick the color to compare, I just want to show that it is a problem with the model. In fact, some colors will be more obvious.

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sorry, that’s pixelpeeping without any benefit

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The latest redist version is only updated to 3.1.0, hope topaz could update the redist CLI with the GUI. @suraj

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I think Topaz models always used to change color of the original video, since they seem to be re-creating all the new frames, they use some kind of trained average for skin tones and the rest of image. So I always found to have a color shift. Something that I think Topaz needs to invest more in is color management so that the colors remain consistent, otherwise in some personal and most of professional work where color is critical, this tool becomes a liability, instead of benefit. There were I think over the years, complains about this, but Topaz is still color blind company, sadly.

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Thank you for mentioning, we will update it when 3.1.7 is released on Tuesday.

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The color difference is pretty obvious. If anyone couldn’t see the difference, I recommend they should re-calibrate the monitor. :thinking:

2023-02-24_033813

The ΔE between the two color is 2.3623.
A normal human eye should “Perceptible at a glance” for ΔE>2.

2023-02-24_034006

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Very green and looks like you’re getting a grid pattern from Apollo too!

I use Apollo a lot. I think that’s from Themis.

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the fact i don’t notice it is normal. don’t know about others here, but situation here force me to put not only low/save power mode on my monitor + low brightness + Warm color mode in windows, because of eyes trains issue. can’t watch a monitor anymore with normal color / brightness since a long time.

Your words are unreasonable. I first discovered the change in hue and then compared the pixel value to prove it, not the reverse process.

The difference is quite obvious to the naked eye.

I was quite happy when I first used Themis on an old film i put to video and it was able to deblur it some what but with a lot of pattern overlay but not bad when I also used Artemis low quality to clear the noise. But now I get a real mess with this latest version 3.1.6, even with Artemis used to clean up the noise, Themis is now enhancing the noise and artifacts and has made it impossible to use Themis deblur on this old film I am working to restore. It sure has been and up and down ride for us that have paid for the program to do what it is suppose to do and have the Job of beta testing just long enough to have to pay again for the program to get more updates in hope it works to the point where I can do something useful with it.

Latest version has me doing a 4K 23fps to 4K 50fps apollo + proteus and am getting about 1.2-1.5fps. AMD 7 5800x, 32 gig ram, 3080 rtx.

From the talks above I did a side-by-side of chronos fast, chronos and apollo. Chronos fast had some artifacts, chronos had more blockiness and some blurs, and apollo seems to be a little more smooth and the edges a little smoother. I ended up going with apollo on this one as it just seems clearer and more detailed.

I only use Proteus, so I don’t know about other AI models, but I thought of a simple test in the CLI to see if there is any color alteration in TVAI, so that it is not affected by bugs in the GUI.

FFMPEG has a function to generate test images.
The TVAI filter is working in the RGB color space, so there should be no color space changes or other effects if you export directly to png(RGB) with rgbtestsrc(RGB).

Images generated by rgbtestsrc with a resolution of 320x240 were compared with “4x with FFMPEG scale filter” and “2x2 with TVAI and FFMPEG scale filter”.

"C:\Program Files\Topaz Labs LLC\Topaz Video AI\ffmpeg" -f lavfi -i rgbtestsrc -vframes 1 -vf tvai_up=device=-2:model=prob-3:scale=2:compression=0.24:details=0.24:blur=0:noise=0.12:halo=0:preblur=0,scale=w=1280:h=960 veai_rgbtestrc.png
"C:\Program Files\Topaz Labs LLC\Topaz Video AI\ffmpeg" -f lavfi -i rgbtestsrc -vframes 1 -vf scale=w=1280:h=960 rgbtestrc.png

TVAI 2x & FFMPEG 2x(320x240 → 640x480(TVAI) → 1280x960(FFMPEG))

FFMPEG 4x(320x240 → 1280x960(FFMPEG))

There are differences in the way ringing occurs at the color border, but there is not much color alteration.

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I can confirm that Themis in this release is much worse and muddy looking compared to 3.1.5. It just looks splotchy everywhere on every clip i test it on.

I have a very well calibrated monitor and I can see the color difference in your image. The one on the right has a blue tint that turns a little yellow.

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I confirm indeed

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I see a quite obvious hint of yellow in the right hand image without even enlarging it.

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