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DrDre

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Join date
16-Mar-2015
Last activity
6-Sep-2024
Posts
3,989

Post History

Post
#1096509
Topic
Neverar's A New Hope Technicolor Recreation <strong>(Final Version Released!)</strong>
Time

Williarob said:

KDJ said:

dahmage said:

NeverarGreat said:

So is there a way to fix the links?

patience?

I would not hold your breath. That site has seemingly never been updated, goes offline randomly, and almost always has extremely slow load times. All of these issues have been present for years. There is simply no better alternative available to take its place. (yet)

I saw this post and I decided on the spot “I should build an alternative”. So I bought a domain name on Tuesday morning and built a quick screenshot comparison site:

http://www.framecompare.com

Here is an example showing how it works with multiple aligned images:

http://www.framecompare.com/screenshotcomparison/WNNN8T8X

I literally just put it up 5 minutes ago, so there are bound to be some bugs that need working out, but it does seem to work. I made several “enhancements” I felt were missing from the old site:

  • You can compare up to six images with each other all at once
  • er. Ok, I guess it’s just that one enhancement then.

Try it out and let me know what you think.

Amazing Williarob!!!

Post
#1096433
Topic
Color matching and prediction: color correction tool v1.3 released!
Time

lansing said:

Williarob said:

alexp120 said:

alexp120 said:
If you look at williarob’s “Restoring Color to Red Faded Film” video

http://thestarwarstrilogy.com/starwars/post/2016/09/12/Restoring-Color-to-a-Faded-Eastman-Print-of-Star-Wars

…beginning at the 15:47 mark, he explains how you can build a model containing a wide variety of colors. You are grabbing sample frames of the shot that you are working on from both the reference video and the test video, and creating LUT’s of all the colors in that shot.

I noticed that the number of sample frames of the shot from both the reference video and the test video is 16. Why 16?

I think it had to do with how big the montage image was going to be. I didn’t want any blank areas, so it had to be 4x4 or 3x3 or 5x5, but if I recall correctly, any bigger than 4x4 at that resolution (each frame about 848x360? - something like that) would just leave the color match tool hanging indefinitely on my system. Your system may be more or less powerful than mine, so your mileage may vary.

If you were using the tool to grade a film like Raiders or Star Wars then I would recommend you take 8 to 16 frames from every scene (rather than shot) and turn them into montages, one of the source (or test) frames and one of the target (reference) frames and create a LUT for each scene.

In my testing, I did try grabbing up to 64 small frames (smaller than SD) from an entire reel of Star Wars and generating montages and a single LUT for an entire reel, but found it was much less accurate than doing it on a scene by scene basis. However, this was probably because the reel did not have consistent colors (parts of the reel were scanned with different color settings) so 1 LUT to rule them all was not possible until all the shots had been color balanced first.

However you may be able to create a single montage for an entire episode of what you are working on, especially if the color changes are consistent.

This is a very late follow up because I was slacking off. I created a montage reference image and it sure is more accurate. My question now is is 4x4 montage the overall best size as a reference for a scene? Or is it better to build the montage with 1 frame from each second in the scene?

My second question is what is the minimum resolution we can use to create the montage without affecting quality when building the color matching model in the program? It sounds too crazy to build the montage with the full size 1920x1080 frames.

Montages will work, but the more frames the more difficult it is to match the frames, with a higher probability of artifacts. For the fast mode the frame size is significantly reduced.

Post
#1092825
Topic
Star Wars Trilogy SE bluray color regrade (a WIP)
Time

I’m back at it. We had to cut our vacation short, due to a family emergency, which has luckily been resolved. We’ve postponed our vacation to a later date.

I’m currently sorting through the roughly 600 shots I have, putting those shots that belong in the same scenes together.

The bluray regrades/color references I presented certainly have the correct feel. I think they’re about 80% there. My current plan is to tweak each of them to match their respective frames after I’ve finished sorting through them.

Post
#1091685
Topic
The theatrical colors of the Star Wars trilogy
Time

If you boost the saturation of those last images, the colors are pretty close to the earlier images, although the green is somewhat less intense:

So, I believe it’s a matter of intensity and contrast. The colors are more intense when the projector is pointed directly at the camera, than when you capture the light projected on a screen, for which you only capture a fraction of the light emitted by the projector.

Post
#1090472
Topic
Star Wars Trilogy SE bluray color regrade (a WIP)
Time

I’m seriously considering finishing this regrade, once project-X is done. Would there be an interest in yet another regrade?

On another note, the various technicolor print scans, and the frames themselves show slight, but consistent color imbalances between shots. Should these be kept for a regrade? What are your opinions on the subject?