DrDre

Yes, the scans and the Mike Verta’s photos Harmy used are extremely close.

DrDre calibrated scan:

Mike Verta photograph:

Yes it is. I also have a large number of other shots of this scene, which if memory serves me right, are more balanced.

This shot seems to have had a pretty strong green cast on most Technicolor prints. The 1977 bootleg shows a very similar hue:

Yup, it’s a single gamma correction applied to the raw scans, such that the shot to shot variation is preserved as it is on the print.

Here are the first set of completed scans for a variety of scenes:

Here’s my own interpretation:

Nice, UnitéD2!

Here’s another test set with different settings. I think I prefer the previous settings with a slightly lower saturation. Perhaps some of you here can optimize the contrast/brightness/black levels/white levels, using this example, which contains both dark and bright shots:

Please don’t correct the frames individually, but as a set, and also don’t adjust the color channels individually. Once we’ve settled on the preferred post-processing, I will render the final versions using these preferences, and the raw versions with the aforementioned settings.

Here are two sets of frames scanned with the new settings:

I’ve altered the settings of the software that operates the scanner. I’ve scanned three frames, and they look absolutely fantastic. Tomorrow I will finish the rest, and I will post them. 😃

age said:

I think every digital camera, scanner and even the hdr cameras works in the same way.
An untouched raw file from camera or scanner is in linear light…

I will try setting the gamma gradation to 2.2, and 2.4 in Silverfast (the default value is 2.0, which is probably what I’ve used, apparently the appropriate value for HD is 2.4, and 2.6 for digital cinema), but having examined the frames themselves, I think your correction is a little strong on contrast and saturation. The contrast and saturation closely match the Senator photos, but photographs of a projection enhance contrast, so I’m pretty confident contrast and saturation should be reduced. To be continued…

I altered the file I have on imgur at work. Not the raw file I have at home, so that should account for the difference.

Here’s a photograph I took of my computer screen:

You will note, that not only are the colors not completely representative of the actual film, but the contrast and saturation has also increased, not unlike the Senator screening photographs. The hue, contrast and saturation of the Senator photographs are therefore not representative of the original photography, or what could actually be seen on the projection screen, just like my photo is not representative of what’s on my computer screen. 😉

Not really. The idea of projection is just passing light through a frame, just like the sun light. We’re so used to pumping up contrast and saturation, that actual film looks dull by comparison. We also let ourselves be guided by photographs of a screening, which by nature are more contrasty than the original photography. Nothing is set in stone, and this thread is mostly about the hues, but it’s good to have a discussion about contrast and saturation, because the first thing I noticed when I recieved the frames, is that contrast and saturation looked very natural, and photographic.

I decided to go for an alternate gamma correction, as the previous one seems a little too contrasty and saturated, compared to the actual frames, and less representative of the actual photography:

Raw scans:

Gamma corrected scans:

I have a few more of this scene, among them one wide shot, but these were all in one batch, so they were the first in line to be scanned:

I’ve altered the settings of the software, which produces the same colors, but with much improved contrast and saturation. I will post those tomorrow in the thread.

age said:

Thanks DrDre!!

This come out a bit too much saturated when i increase the contrast

The colors for the latter frames are not correct, as there was some color conversion issue. I will scan those again with the correct settings. Only the Death Star conference room shots are correct.

Here’s another example of the Technicolor print colors applied to a shot of the Death Star conference room scene.

Bluray:

Bluray matched to Technicolor print:

Here’s what that frame would look like with the print colors:

That looks great! I think the settings are now such that no information is lost in the dark and light areas. At this point I’m mostly concerned with getting color accuracy, but your gamma correction is looking pretty sweet, so I will be using yours for future reference.

Here’s what the Conference room scene looks like on the print (gamma correction based on correction by age):

Edit: updated gamma correction

The problem with this approach is, that the lights are supposed to be blue. 😉

While the print has the green cast typically seen for Technicolor prints of Star Wars, the colors are in good agreement with the Senator print photo of this scene:

I used the standard levels of the Silverfast scanning software. Here’s the first full set of calibrated scans for the Death Star Conference scene:

I figured out what went wrong. For some reason windows photo viewer altered the colors of image when I opened, rotated, and saved the raw scan. Here’s are the correct colors for the Death Star corridor shot.

There’s something wrong in the software settings, as the prescan and frames themselves look much less green than the final versions.