Another nice property of the color matching algorithm, is that it does not require the reference to have the same quality as the source.
Bluray:
WOWOW:
16 mm reference:
Bluray matched to 16 mm reference:
An interesting aspect of this color match, is that Indy has a more natural skin tone in the color corrected frame, than in either the bluray or the WOWOW.
DoomBot said:
You'd be correct...
Starting at 29:55:00
what is so different about this scene?
Did anyone ever confirm a rumor about a few missing seconds in the Bar Fight with the big gherka from 35mm theatrical cut.. Or is it rubbish and lies?
Was just talking about the wowow in the upper right corner.
Those color matches look great Dr Dre. I’d love to use your program sometime if you ever release it for public consumption. Color matching is a laborious process.
PDB said:
Those color matches look great Dr Dre. I'd love to use your program sometime if you ever release it for public consumption. Color matching is a laborious process.
Concerning the whole discussion of what Raiders really looks like. One of our members here tracked down a rare 1982 LPP of Raiders. There were only 200 made for the '82 re-release. It was mastered from the same 35mm materials as the 1981 prints only unlike the '81 prints there is no fading. As usual the only thing stopping us is the approximately $600 to $750 it costs to scan it. So would anyone be interested?
I will hopefully be able to share a standalone tool based on this method. I will keep you posted.
PDB said:
Those color matches look great Dr Dre. I'd love to use your program sometime if you ever release it for public consumption. Color matching is a laborious process.
Concerning the whole discussion of what Raiders really looks like. One of our members here tracked down a rare 1982 LPP of Raiders. There were only 200 made for the '82 re-release. It was mastered from the same 35mm materials as the 1981 prints only unlike the '81 prints there is no fading. As usual the only thing stopping us is the approximately $600 to $750 it costs to scan it. So would anyone be interested?
You know I would be. As per usual, I'd be willing to put down some for this. Anybody else?
DrDre said:
PDB said:
Those color matches look great Dr Dre. I'd love to use your program sometime if you ever release it for public consumption. Color matching is a laborious process.
Concerning the whole discussion of what Raiders really looks like. One of our members here tracked down a rare 1982 LPP of Raiders. There were only 200 made for the '82 re-release. It was mastered from the same 35mm materials as the 1981 prints only unlike the '81 prints there is no fading. As usual the only thing stopping us is the approximately $600 to $750 it costs to scan it. So would anyone be interested?
I will hopefully be able to share a standalone tool based on this method. I will keep you posted.
That would be great. I'm sure the mechanics of the process are beyond my abilities but what is the input/output? Individual picture frames or video like AVI?
TServo2049 said:
PDB said:
Those color matches look great Dr Dre. I'd love to use your program sometime if you ever release it for public consumption. Color matching is a laborious process.
Concerning the whole discussion of what Raiders really looks like. One of our members here tracked down a rare 1982 LPP of Raiders. There were only 200 made for the '82 re-release. It was mastered from the same 35mm materials as the 1981 prints only unlike the '81 prints there is no fading. As usual the only thing stopping us is the approximately $600 to $750 it costs to scan it. So would anyone be interested?
You know I would be. As per usual, I'd be willing to put down some for this. Anybody else?
I'm serious when I say you are quickly becoming the patron saint of 35mm projects Servo.
You can of course count me in for Indy :)
PDB said:
DrDre said:
PDB said:
Those color matches look great Dr Dre. I'd love to use your program sometime if you ever release it for public consumption. Color matching is a laborious process.
Concerning the whole discussion of what Raiders really looks like. One of our members here tracked down a rare 1982 LPP of Raiders. There were only 200 made for the '82 re-release. It was mastered from the same 35mm materials as the 1981 prints only unlike the '81 prints there is no fading. As usual the only thing stopping us is the approximately $600 to $750 it costs to scan it. So would anyone be interested?
I will hopefully be able to share a standalone tool based on this method. I will keep you posted.
That would be great. I'm sure the mechanics of the process are beyond my abilities but what is the input/output? Individual picture frames or video like AVI?
TServo2049 said:
PDB said:
Those color matches look great Dr Dre. I'd love to use your program sometime if you ever release it for public consumption. Color matching is a laborious process.
Concerning the whole discussion of what Raiders really looks like. One of our members here tracked down a rare 1982 LPP of Raiders. There were only 200 made for the '82 re-release. It was mastered from the same 35mm materials as the 1981 prints only unlike the '81 prints there is no fading. As usual the only thing stopping us is the approximately $600 to $750 it costs to scan it. So would anyone be interested?
You know I would be. As per usual, I'd be willing to put down some for this. Anybody else?
I'm serious when I say you are quickly becoming the patron saint of 35mm projects Servo.
It can import and export 8 bit and 16 bit images. You build a color correction model for a reference frame in a scene, and then select all other frames in the scene, and correct them with this model.
That's right you were saying it can handle bmp, jpg, png, tif (8 bit/16 bit), and exr (HDR files). Will dng HDR files be supported as well, or even dpx?
Very impressive algorithm you have.
At this point it's only exr (although I have to check whether these will function in the standalone app), but I will see if I can get other formats implemented, and provide an update.
Sounds great, thanks DrDre
Anyone interested in getting the color correction GUI can send me a PM. I will then send you a link to the necessary files.
When you've downloaded the file named ColorCorrect_pkg.exe, execute the file. You will be asked to install the MATLAB runtime environment. After you have finished installing, a new executable named ColorCorrect.exe will be available. Open this file as administrator, else it will not work.
A few words of advice on using the GUI. The GUI itself is pretty self explanatory.
The process is as follows:
1) Select a test image. A figure will open, showing the image. You will be able to crop the frame, with your cursor.
2) Select a reference image. A figure will open, showing the image. You will be able to crop the frame, with your cursor.
3) Build a color correction model. Depending on the resolution/size of the images after cropping and your hardware, this may take 0-15 minutes (15 min for a 4K image) on an Intel Core i5. A figure will open showing you the test frame as it is being matched. With each iteration it should be closer to the reference.
4) Save the color correction model for later (optional).
5) Import a color correction model (optional).
6) Import any number of images, and color correct them with a color correction model you just built or imported. The images will be saved in a newly created directory named "Corrected" with the same name as the original images. Color correcting a frame may take anywhere between 5 and 20 seconds, depending on the resolution/size of the frame, and of course your hardware.
When building a color correction model you should consider the following:
1) The model assumes the test and reference images (frames) are identical, aside from the color. In other words it's important the images are cropped in the same way (to a reasonable degree). Incorrect cropping may lead to artifacts.
2) When using a print or a low quality source as a reference, there may be color variations within the frame. For example some parts may be darker or brighter than others. If you use the full frame for building a color correction model, it will try and fail to reconcile these differences, resulting in artifacts. The best way to go, is to select a consistent part of the frame, select the same part for the reference, and then build the color correction model.
3) Although it is in theory you could regrade an entire film, based on a single reference frame, this will probably not work in practice, because one reel may have degraded in a different way than another or one scene may have been color graded differently from another. In principle it is possible that each frame will have to be matched individually, but usually a film is graded on a scene by scene basis, so a single reference will suffice for a particular scene.
Hope you enjoy the tool. Of course if you use the tool for your projects, any acknowledgements will be appreciated. The same is true for any comments, critisism or suggestions you may have. In that case send me a PM.
As I've shown before, the real power of this color correction method is the color prediction of other frames. Using the previous frame from Raiders of the Lost Ark as a reference (slightly adjusted), I predicted the colors for five frames from the beginning of the film:
This is the result. Who says you can't make the bluray look like film? ;-):
Here are a few more iconic frames from the film adjusted by the model to match 16 mm colors:
PDB said:
Those color matches look great Dr Dre. I'd love to use your program sometime if you ever release it for public consumption. Color matching is a laborious process.
Concerning the whole discussion of what Raiders really looks like. One of our members here tracked down a rare 1982 LPP of Raiders. There were only 200 made for the '82 re-release. It was mastered from the same 35mm materials as the 1981 prints only unlike the '81 prints there is no fading. As usual the only thing stopping us is the approximately $600 to $750 it costs to scan it. So would anyone be interested?
Sorry I've been slow to get back to you via PM, but I am still interested.
DrDre said:
Here are a few more iconic frames from the film adjusted by the model to match 16 mm colors:
Definitely an improvement, if a bit yellow for my taste. The problem is that the blu-ray cannot be completely adjusted because the color is not just altered but there seems to be an actual filter applied, which has obliterated some of the color and detail. Add to that overexposed shots which have blown out detail (the one of Toht melting above is a perfect example) and you can never fix the blu-ray. That blown out detail and color cannot be recovered and corrected. On top of that, shots which were overexposed then had highlights dialed down in an attempt to fix the overexposure, resulting in a dulled look which lacks vibrancy and detail. Hard to believe anyone ever approved that release. Even with your color correction, the shots above look dull and flat and that can't be fixed.
The Wowow is the only viable HD option available at the moment. And even that has some blown out shots, but to a much lesser degree and without tampering with the highlights.
Another pics from a cutter on ebay that probably has some red fade:
We can get a scan of a 35mm print of Raiders if people donate. Could put an end to the color/look debate.
Edit: sorry I missed your post litemkr, before posting
Right, Dr Dre color Matching program whilst fascinating in it's own right of what it can do and I also don't want to hijack his 35mm regrade thread but I like generally a lot of the results he is getting.
I also agree Litemakr that the WOWWOW although not perfect is the better source from what I can see.
The only access I have to it is when Dr Dre posts a picture so I am not disputing his work but in looking at the last picture posted I tried to pull as much as I could out of the WOWWOW and found it settles nicely and looks natural all apart from the people in the truck were magenta and blue hues behind the window. Some sort of issue there and it seems inherited in all versions. So perhaps that is an issue across all versions? but I will share what I did. I'd really just like to see something that looked natural looking to be honest I had to color correct the inside of the truck separately so the people driving it look like normal people. I'm not saying it's right either but I am trying and it's good fun to see things differently.
Ronster said:
Right, Dr Dre color Matching program whilst fascinating in it's own right of what it can do and I also don't want to hijack his 35mm regrade thread but I like generally a lot of the results he is getting.
I also agree Litemakr that the WOWWOW although not perfect is the better source from what I can see.
The only access I have to it is when Dr Dre posts a picture so I am not disputing his work but in looking at the last picture posted I tried to pull as much as I could out of the WOWWOW and found it settles nicely and looks natural all apart from the people in the truck were magenta and blue hues behind the window. Some sort of issue there and it seems inherited in all versions. So perhaps that is an issue across all versions? but I will share what I did. I'd really just like to see something that looked natural looking to be honest I had to color correct the inside of the truck separately so the people driving it look like normal people. I'm not saying it's right either but I am trying and it's good fun to see things differently.
I don't mind critical voices, so keep 'm coming. The critics really helped to improve the super resolution script I wrote. I may resist at first, but I often end up agreeing with the critics in the end.
Hi. Not sure it can help because it's captured with my video recorder and it's not easy to capture the good colors, but here is a short video from my french 16mm reel (les aventuriers de l'arche perdue).
http://vimeo.com/140466806 (pass:ot.com)
Real color of the Matte Painting before Blue Screen process applied.
Here's my latest grading for that shot:
I would like to see the shot recomposited to get the detail back in the background and the water the right color.
you see it's 2 separate images and neither when combined are correct because of blue screen process.