AntcuFaalb said:
g-force: Based on your experience, do you suspect that a YUV version would match better than an RGB version?
No, as a matter of fact, that's how this all started. Do a google search for YcUrVematch ;)
Chewtobacca said:
g-force said: I'll make an updated version after Christmas that has all the options of both scripts, and maybe a YUV version as well.
Hey, g-force. Are you still planning to work on a YUV version? It would be really useful.
By the way, does the option to determine the correction from two different sources and then apply it to a third get round the numerous colorspace conversions in the script?
You mentioned adding the option to balance the black and white levels to an updated version of the script. Would it be possible to write a script that matches only black and white levels i.e. makes no color changes? Could this be used to correct a source with a brightness-and-contrast problem by using another source or does it not work like that?
Dude, didn't see this until AntcuFaalb pointed it out. Sorry, I've been busy, and I still owe you a response to your e-mail. All these requests are definitely possible, but I just have to find the time to get it done.
-G
Sorry to be a downer. And no, I hadn't seen that. I got a PM from Chewtobacca a while back, and I still owe him an answer. I've just been so busy that I haven't had a chance to investigate his requests. I feel bad. Will respond now.
AntcuFaalb,
Let me be the one to say, I think you're NUTS! Here's why:
1. GOUT is unwatchable due to DVNR
2. 97SE is WORSE than GOUT due to DVNR
Get your goddamn captures done, and just forget about this project.
Okay, anyone thinking that I'm being a little harsh... AntcuFaalb and I talk quite often, and the mutual respect is quite high between us. I'm just surprised by what he's suggesting here.
-G
msycamore said:
I was talking crap so you may disregard what I said, sorry about that.
Hey, there's a first for everything :)
-G
althor1138 said:
g-force said:
Alright, I'm looking at the SW sample, and I don't see the crazy amount of temporal artifacts that the 720 mkv had, but it also looks less detailed than I remember the 480 mkv being (sorry, at work and can't compare). Anyway, the fine (good) grain seems to be gone and the big (some may argue ugly) grain seems to still be there. So, why bother?
I've tried to take into account what you said about the detail and the grain. When you have time would you look at this? If you don't think it's an improvement I think I will concede with you and just release a 480p anamorphic version with only adjusted levels and saturation alongside the 480p raw letterbox.
It's the same method in the script above but I've added some masks and a couple other things to try and keep detail. I might have cheated a bit, I'm not sure. I'll wait to see what you say.
It's a split down the middle of the frame comparison of the raw capture on the right and the filtered version on the left.
So, take a look at the split-screen sample you posted. Blow it up full-screen. Notice on the left how any little bit of camera movement or gate weave causes some things to move separately from other objects, like some panels on the x-wing move, while others stay still. I see none of that on the right side, the entire frame moves together. It's a common problem with temporal noise reducers.
-G
Alright, I'm looking at the SW sample, and I don't see the crazy amount of temporal artifacts that the 720 mkv had, but it also looks less detailed than I remember the 480 mkv being (sorry, at work and can't compare). Anyway, the fine (good) grain seems to be gone and the big (some may argue ugly) grain seems to still be there. So, why bother?
my 2 cents.
-G
msycamore said:
Will be very interesting to see how your fine gear treat the somewhat problematic Technidisc LD (althor has offered to help cap it for me :)
How exciting!
-G
I'll take a look at your denoising examples, downloading now.
I vote to make seperate .mkvs next time. Hang in there, from what I've seen so far, you'll get this to be great!
my 2 cents... the noise reduction looks like ass, as all noise reduction does, but this one looks particularly bad (smearing, warping...).
On the other hand, the SD version is one of the most beautiful captures I've ever seen. I had to demux though, as I couldn't figure out how to play the second stream otherwise. For some reason it plays back with interlacing artifacts though, is it still interlaced?
May I suggest an in-between version with no noise reduction but IVTC'd?
anyway, you've set the bar pretty high on video caps. Nice work!
You_Too said:
g-force said:
It seems that some shades of magenta have been globally replaced with a kind of greyish-brown. I noticed it also on some laserblasts.
That is my fault, since it was caused by the old color correction of the BD that I made for Harmy. Pushing down the magenta was the only way I could find that would globally fix all the problems with it. Seriously, the use of magenta in the BD is horrible. Lots of things that should be red is magenta. Heck, even stuff that should be a soft brown.
So blame me. And of course Lucasfilm for the terrible BD master.
Oh, I remember now, you were trying to get rid of the magenta tint on Uncle Owen's sleeve by use of selective color replacement, but didn't realize you used the selective color on the whole film.
NeverarGreat said:
In the dinner scene, the colors look off. Compare the colors of the flowers and foliage behind Owen to the still of the Senator Technicolor print. The greens are less bright, the purple in the flowers is too gray.
It seems that some shades of magenta have been globally replaced with a kind of greyish-brown. I noticed it also on some laserblasts.
-G
Congrats poita! I look forward to seeing what you do with this.
-G
Thanks, but the script was more forgiving to Chewtobacca's sources than some other color mismatches I've seen. I guess this technique (matching averages) works better when the colors haven't been fucked with too much between the sources.
-G
thanks for sharing Chewtobacca!
-G
I thought Harmy was going into battle with a Blu-Ray comparison. (Not really, I knew what you meant).
-G
BTW, NevararGreat, the colors are a big improvement, but I'd be concerned about crushing the black more than they already are.
I don't remember the colors too well form '97, but I do remember the added scene with the Jawas on the Ronto and the speederbike really looked like shit pink colorwise. Interesting that the broadcast version looks the same way to me.
-G
I can't see past the compression artifacts.
absolutely, post away
-G
Blend mode lighten in After Affects just takes the higher value of the source layer and the other layer. This is a simple LUTxy in Avisynth. The keying is just a LUT. Some of the details still don't make sense to me, but all of the operations seem quite easy.
Dude, that looks so much better! I think it's still a little waxy, as in too denoised. I wonder if you could back off the denoising a bit and gain more processing speed.
The sharpness looks good!
-G
Sorry, my comments were a little harsh, and not very constructive. The clip actually shows some promise.
Well, You_Too gave you a good suggestion on sharpening. LimitedSharpen is nice in some conditions as well. Just don't over-do it. Doing nothing is always better than doing something with artifacts.
As for the denoiser, IF I had to choose one, I'd use either TemporalDegrain or a variant of it like MCTemporalDenoise.
-G
Just watched the OUT sample you posted. Large halos, trails of grain.
I thought you were giving up on the "enhancement". You are using a horrible denoiser, and an even worse sharpener.
-G
Hey You_Too,
any chance you can post or PM me the problem clips, as well as how you are calling the function? I'll take a look and see what can be done.
-G