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Info: The Ultimate Super Resolution Technique — Page 3

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TV’s Frink said:

jedimasterobiwan said:

TV’s Frink said:

Oh great you answered now he’s encouraged to keep asking.

Never mind, I forgot that he’ll keep asking no matter what.

Why won’t go away no one likes a troll troll. Also pardon my French go to hell tiny hands

Could you use some English instead?

Back to haunting project threads because your off topic doesn’t have enough room for all your glorious intellect?

Can we please get back on topic?

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Time
 (Edited)

Jetrell Fo said:

TV’s Frink said:

jedimasterobiwan said:

TV’s Frink said:

Oh great you answered now he’s encouraged to keep asking.

Never mind, I forgot that he’ll keep asking no matter what.

Why won’t go away no one likes a troll troll. Also pardon my French go to hell tiny hands

Could you use some English instead?

Back to haunting project threads because your off topic doesn’t have enough room for all your glorious intellect?

Can we please get back on topic?

Of course that’s what scumbag trolls do. We need troll trace ha ha ha. I bet he lives in his mom’s basement and has no friends. I mean come on doesn’t he have anything better to do then be a troll? He should get a life we need a troll cleanse or something.

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I wonder something Neverar : do you think that “dye cloud algorithm” will preserve the color timing of the image, even with a very high range ? Because the density and the inequal repartition of the silver particle are taken in consideration for the printing process to obtain a printed image faithful to the captured image. If you build an averaged image with the maximum of dye clouds, it will be very, very dark, no ?

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poita said:

Okay, here goes. I didn’t spend much time on this, so far better results are possible, I didn’t have time to work out the best alignment points and settings, and these are from Tech prints, so there are some RGB alignment issues in the source. I also used raw scans, so the damage and dirt is still there, it would be better had they been cleaned up first.

I found a scene I have a few scans of. The scans are all in 1080P.

I loaded the scans into elastix to roughly align them, then exported to autostakkert to stack and drizzle the images.

The source frame was this. (right click to view at full 1080P)

After a (very rough) stacking, we get this result at 1080P

You can see most of the noise has disappeared and more detail revealed in the trooper and in the sand patterns behind him.

So to compare a before and after stacking with a close-up of our favourite trooper, see if you can work out which is the before and which is the after…

Some Split-screen compares: (right click and view the image to see them at full Rez)

The next step is to enable drizzling to try and get a super-resolution thing happening. This normally would mean a lot of experimenting to find the best settings, these were just a first guess, it could be made better.
So to scale our original frames to a stacked and super-rezzed 4K image (4096 pixels wide vs 1920 pixels wide) we get this:

The image on the left is the drizzled ‘super resolution’ image, on the right, is the original frame upscaled to the same size in Photoshop’

Finally, a full 4096 pixel wide image created via stacking and drizzling the 1080P source scans:

https://infinit.io/_/b52Jcxw

Unfortunately IMGUR reduces the image quality quite a bit, so I have linked to the file instead.

Anyway, I have probably bored everyone shitless now, even though that is a quick example, not a great one by any means, but I thought I’d share the kind of thing I’ve been messing with. As I mentioned, I’ve been doing it with astrophotography for many years, and those programs and techniques can be quite useful for image processing in general.

Whoa.

Keep Circulating the Tapes.

END OF LINE

(It hasn’t happened yet)

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 (Edited)

UnitéD2 said:

I wonder something Neverar : do you think that “dye cloud algorithm” will preserve the color timing of the image, even with a very high range ? Because the density and the inequal repartition of the silver particle are taken in consideration for the printing process to obtain a printed image faithful to the captured image. If you build an averaged image with the maximum of dye clouds, it will be very, very dark, no ?

This is one of the questions I have as well. Since the grains are necessarily what darken the image, if you were to use only the grains, the image would probably be quite dark. I expect there would need to be a luminosity adjustment based on the average luminosity of the frame before this process is done. But after the adjustment, there shouldn’t be a problem with brightness.

As for color timing, since the process would need to be done to each of the 3 color layers individually, the above process of adjusting the luminosity could be applied to each of the layers separately. In this way, even if one layer were to become quite a bit darker than the others with this process, the adjustment could correct for this. I expect this is where averaging whole frames (rather than separate pixels) would be very useful for preserving the original color grading.

You probably don’t recognize me because of the red arm.
Episode 9 Rewrite, The Starlight Project (Released!) and ANH Technicolor Project (Released!)

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Jetrell Fo said:

TV’s Frink said:

jedimasterobiwan said:

TV’s Frink said:

Oh great you answered now he’s encouraged to keep asking.

Never mind, I forgot that he’ll keep asking no matter what.

Why won’t go away no one likes a troll troll. Also pardon my French go to hell tiny hands

Could you use some English instead?

Back to haunting project threads because your off topic doesn’t have enough room for all your glorious intellect?

Can we please get back on topic?

A guy asking in every damn thread on the forum about the effect the subject of the thread will have on adywan’s edit is not on topic.

But thanks for staying out of off-topic lately, things have been much more pleasant there.

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jedimasterobiwan said:

doubleofive said:

jedimasterobiwan said:

No, Google is not going to upscale Adywan’s edits to 4k. When the source is 1080p downscaled to 720p then upscaled to 4k, you won’t gain anything.

Then what is this thing here exactly do then in this topic

It’s for cleaning up film scans for preserving the original movies. Wait, do you think this entire forum is just for Revisited?

Star Wars Revisited Wordpress

Star Wars Visual Comparisons WordPress

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Swazzy said:

Would this do any good for laserdisc captures? (i.e. the neglected, unaltered version of Millennial Garbage Movie '98)

Yes, stacking frames can really help with laserdisc and VHS captures, it can get rid of player-induced noise, and if you have multiple discs, then it can help remove dropouts and pressing errors, while reducing the chroma noise etc.

Donations welcome: paypal.me/poit
bitcoin:13QDjXjt7w7BFiQc4Q7wpRGPtYKYchnm8x
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doubleofive said:

jedimasterobiwan said:

doubleofive said:

jedimasterobiwan said:

No, Google is not going to upscale Adywan’s edits to 4k. When the source is 1080p downscaled to 720p then upscaled to 4k, you won’t gain anything.

Then what is this thing here exactly do then in this topic

It’s for cleaning up film scans for preserving the original movies. Wait, do you think this entire forum is just for Revisited?

No I thought this process would be able to improve on it that’s all. From what the google thing showed I though it would be a big deal for it.

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poita said:

Swazzy said:

Would this do any good for laserdisc captures? (i.e. the neglected, unaltered version of Millennial Garbage Movie '98)

Yes, stacking frames can really help with laserdisc and VHS captures, it can get rid of player-induced noise, and if you have multiple discs, then it can help remove dropouts and pressing errors, while reducing the chroma noise etc.

I’ve got an opposite question - if you have a grainy DVD and a Blu-ray so degrained that it looks too cartoony, is there a way to combine the HD image with the grain from the DVD?

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pittrek said:
I’ve got an opposite question - if you have a grainy DVD and a Blu-ray so degrained that it looks too cartoony, is there a way to combine the HD image with the grain from the DVD?

Better to use a real grain plate to apply over the BD; it helps a lot, sometimes.

Sadly my projects are lost due to an HDD crash… 😦 | [Fundamental Collection] thread | blog.spoRv.com | fan preservation forum: fanres.com

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TV’s Frink said:

Jetrell Fo said:

TV’s Frink said:

jedimasterobiwan said:

TV’s Frink said:

Oh great you answered now he’s encouraged to keep asking.

Never mind, I forgot that he’ll keep asking no matter what.

Why won’t go away no one likes a troll troll. Also pardon my French go to hell tiny hands

Could you use some English instead?

Back to haunting project threads because your off topic doesn’t have enough room for all your glorious intellect?

Can we please get back on topic?

A guy asking in every damn thread on the forum about the effect the subject of the thread will have on adywan’s edit is not on topic.

But thanks for staying out of off-topic lately, things have been much more pleasant there.

If you can’t stay on topic or stop trolling people in project threads, then just don’t post, it’s that simple really.

Thank you.

Author
Time

jedimasterobiwan said:

Jetrell Fo said:

TV’s Frink said:

jedimasterobiwan said:

TV’s Frink said:

Oh great you answered now he’s encouraged to keep asking.

Never mind, I forgot that he’ll keep asking no matter what.

Why won’t go away no one likes a troll troll. Also pardon my French go to hell tiny hands

Could you use some English instead?

Back to haunting project threads because your off topic doesn’t have enough room for all your glorious intellect?

Can we please get back on topic?

Of course that’s what scumbag trolls do. We need troll trace ha ha ha. I bet he lives in his mom’s basement and has no friends. I mean come on doesn’t he have anything better to do then be a troll? He should get a life we need a troll cleanse or something.

jmo, I know that you are full of curiosity about how all this works and that’s great. Staying focused in each different thread helps the OP and others like yourself learn. It is also the best way to get questions answered if you have any based on the thread topic. This might also keep the troll away which is better for all of us as well.

Cheers!!!

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Time

poita said:

Okay, here goes. I didn’t spend much time on this, so far better results are possible, I didn’t have time to work out the best alignment points and settings, and these are from Tech prints, so there are some RGB alignment issues in the source. I also used raw scans, so the damage and dirt is still there, it would be better had they been cleaned up first.

I found a scene I have a few scans of. The scans are all in 1080P.

I loaded the scans into elastix to roughly align them, then exported to autostakkert to stack and drizzle the images.

The source frame was this. (right click to view at full 1080P)

After a (very rough) stacking, we get this result at 1080P

You can see most of the noise has disappeared and more detail revealed in the trooper and in the sand patterns behind him.

So to compare a before and after stacking with a close-up of our favourite trooper, see if you can work out which is the before and which is the after…

Some Split-screen compares: (right click and view the image to see them at full Rez)

The next step is to enable drizzling to try and get a super-resolution thing happening. This normally would mean a lot of experimenting to find the best settings, these were just a first guess, it could be made better.
So to scale our original frames to a stacked and super-rezzed 4K image (4096 pixels wide vs 1920 pixels wide) we get this:

The image on the left is the drizzled ‘super resolution’ image, on the right, is the original frame upscaled to the same size in Photoshop’

Finally, a full 4096 pixel wide image created via stacking and drizzling the 1080P source scans:

https://infinit.io/_/b52Jcxw

Unfortunately IMGUR reduces the image quality quite a bit, so I have linked to the file instead.

Anyway, I have probably bored everyone shitless now, even though that is a quick example, not a great one by any means, but I thought I’d share the kind of thing I’ve been messing with. As I mentioned, I’ve been doing it with astrophotography for many years, and those programs and techniques can be quite useful for image processing in general.

Great example poita! There are such amazing things possible with image processing. I wish I had more time to delve more deeply into this, but alas time is in short supply these days…

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Those of you who are having trouble getting along: please stop. Focus on the topic and let each other be.

poita, thank you so much for this great topic and everything you’ve contributed to the preservation community. I’m fascinated by technical discussions like this one.

Forum Administrator

MTFBWY…A

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Thanks Jay.
Maybe we could shift this to the “How-To’s and Technical Discussions” area so people aren’t confusing this with any particular restoration project?

Donations welcome: paypal.me/poit
bitcoin:13QDjXjt7w7BFiQc4Q7wpRGPtYKYchnm8x
Help get The Original Trilogy preserved!

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Good idea. Done.

Forum Administrator

MTFBWY…A

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Mr efficiency!

Donations welcome: paypal.me/poit
bitcoin:13QDjXjt7w7BFiQc4Q7wpRGPtYKYchnm8x
Help get The Original Trilogy preserved!

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Time

And even better news, I don’t browse the How-To subforum so you won’t be seeing me in this thread anymore!

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NeverarGreat said:

Thanks! It occurred to me right after creating the project that this might be a better place for it…

Sorry, I meant to thank you also for starting the topic. Great stuff.

Forum Administrator

MTFBWY…A