age

Good work Dre! Very filmic !
I’ve kept experimenting using the Neverar’s edition at 60% and the bluray with a my single grade at 40%
but I’ve got the issue that they are off sync by 2 frame or sometimes 3 frames.
However this is the result 😃

Link to the album with full res images
https://imgur.com/a/M1wanK1#YT5DsuQ

Hi Dre! How is going this project? 😃
I’ve done a single lut for the NeverarGreat’s version, it’s just a different version with less yellow and contrast

bluray

Neverar+lut

bluray

Neverar+lut

Link to the album with full resolution frames
https://imgur.com/a/CABlZpL#jyFJ3Vs

And the lut

https://filebin.net/rwmjf7hkmj2y3yfp

The a new hope’s bluray has an encode issue and it shows clipped highlights like in this shot

Ideally we should convert it to rgb without expand the luma levels

And then make a color correction

I’ve tried to leave the overall brightness of the bluray untouched and remove a little of the blue/magenta color cast

Here the file .cube to download : https://filebin.net/d0rzizw0qww0w484

some before/after comparison : http://www.framecompare.com/image-compare/screenshotcomparison/0FJNNN8U

and more screenshots : https://imgur.com/a/KCb55

I’ve used Vapoursynth

code

import vapoursynth as vs

core = vs.get_core()
c = core.ffms2.Source(source = "D:/.../00301.m2ts")

c=core.std.CropRel(clip=c, top=132, bottom=132)
c=core.resize.Bicubic(clip=c, format=vs.YUV420P16, filter_param_a=0.0,filter_param_b=0.75, range_in_s="full", 
range_s="full", chromaloc_in_s="center", dither_type="none")

c=core.resize.Bicubic(clip=c, format=vs.YUV444P16,filter_param_a=0.0,filter_param_b=0.75, range_in_s="full", 
range_s="full", chromaloc_in_s="center", dither_type="none")

c=core.resize.Lanczos(clip=c, format=vs.RGB48, matrix_in_s="709", filter_param_a=4, range_in_s="full", 
chromaloc_in_s="center",dither_type="none")
c=core.timecube.Cube(clip=c, cube="C:/.../blurayswfix.cube")


c=core.resize.Bicubic(clip=c, format=vs.YUV444P16, matrix_s="709", filter_param_a=0, filter_param_b=0.75, 
range_in_s="full",range_s="full", chromaloc_in_s="center",dither_type="none")

c=core.resize.Bicubic(clip=c, format=vs.YUV420P16, filter_param_a=0.0, filter_param_b=0.50, range_in_s="full", 
range_s="full", chromaloc_in_s="center",dither_type="none")
c=core.resize.Bicubic(clip=c, format=vs.YUV420P16, range_in_s="full", range_s="limited", 
chromaloc_in_s="center",dither_type="none")
c=core.resize.Bicubic(clip=c, format=vs.YUV420P8, range_in_s="limited", range_s="limited", 
chromaloc_in_s="center",dither_type="ordered")


c.set_output()

Hi guys!
Any chance to have the italian audio track synced with the grindhouse edition?
😃

Thanks NeverarGreat, this star wars version looks fantastic!

DrDre said:

I reduced the brightness somewhat in the brightest areas, and added a bit more yellow to the city walls in the Cairo sequence:

Perfect!!

Good work DrDre, honetsly I like the warm of the bluray, a different approach could be something like add more green and remove just a little of yellow in the highlights

Just watched a new hope and it look great!!

Colors look good and i love your new balanced scans but it seems for some reasons your scans are always oversatured, especially shadows and highlights, i don’t think that reduce contrast can really help.

DrDre said:

Here are two more examples (again contrast is just for testing purposes):

DrDre said:

Here’s my own interpretation:

I really like this one DrDre!

Here’s my try, then maybe i will try with less pushed white

Edit v2

UnitéD2 said:

Nice view frome your window Age ! 😉

Ahahah yes it is 😄

DrDre said:

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. 😃

Can’t wait 😃
I think scanning a film is not simply and there’s not a one click solution, so take your time DrDre and thanks for the hard work!!

DrDre said:

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, 2.4, and 2.6 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…

Ok thanks and yes it’s true, i have enhanced a bit too much brightness and contrast.

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:
1)this is what camera see, in this stage is applied the corrections from the it8 target.
after scanning something you can output a linear file untouched

2)then this file need a gamma correction,yor scan DrDre is in this stage and probably silverfast makes his own adjustement for maximize the information in both shadow and highlight,this stage is good only for archival purpose and it is not really rapresentative of the original photography.
for example in silverfast you can choose the gamma correction (they call it gamma gradation) to use, you should insert the value of 2.20 because is the one used by all monitors and more “human friendly” :

3)finally the file need some contrast adjustment, every jpeg from camera or every raw editing software or scanning software apply a “base curve”, and this is what the human eyes see more or less, i know this is the more creative part of the process but is necessary

from your first scan:-)

Thanks DrDre!!


edit:i’ve reupload this one

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

DrDre it’s nice to see accurate scan of star wars
Probably is better to open a new topic where users can try to make their own version of the scan
Just for curiosity silverfast seems a very cool and complex software, can i ask what value do you have in gamma gradation?

Here’s my fast try

The music is just perfect

Is LucasFilm less powerful?
http://www.hollywoodreporter.com/heat-vision/luke-skywalker-photo-lucasfilm-wouldnt-release-years-987358

I’ve done a shot by shot correction of the tantive’s scene of silver screen edition,sadly i’ve now only a 2 Gb version but i think to have done a good job as the colors seems quite consistent 😃

This is the link for the album:
http://imgur.com/a/8rHng

Indeed the blurays appear to be encoded in 16-255 range

I think the best way to fix this is to reduce both luma and chroma levels,because if we consider just the luma the result is slighty oversatured.
For Luma is simple but when i try to reduce the levels of chroma there’s some colors shift (with the levels tools).
To avoid this last issue i’ve opted for the expression tool in avisynth.
For luma the formula is : [" x 0.92156862745 * “]
For uv channels the formula is: [” x 128 - 0.94117647058 * 128 +"]

At this point the picture is even darker,but we can apply an arbitrary brightness enhancement and i guess now we can push the color correction and the result will be quite natural

Williarob said:

So the blu-rays were encoded RGB Full, rather than RGB limited?

As I understand it, TVs use a video range from 16-235. It considers levels below 16 to be black, and information above 235 is white. A calibrated TV will never display anything below 16 as anything other than black. Most will also treat everything over 235 as white since it should not exist in video content.

PCs are different and use a range from 0-255. There is no data below 0 or above 255 with an 8-bit video signal as there are only 256 possible values. In short, this is much simpler to understand as the TV concepts of Blacker-than-Black and Whiter-than-White do not exist.

Therefore to make the conversion between RGB Full (“PC Mode”) and RGB Limited (“TV Mode”) all you need is the following levels adjustment in AVISynth

// PC to TV ; scales a [0,255] clip to [16,235]:
Levels(0, 1, 255, 16, 235, coring=false)

Not exactly 😃,the encoded materials use a video range of 16-235 for luma and 16-240 for chroma.
If the input is yuv limited range every tv before the yuv-rgb conversion does a levels expansion from 16-235 to 0-255 for luma and 16-240 to 0-255 for chroma,so the tv can display true white and true black.
From what i understand the blurays were encoded in non-standard yuv limited range,so instead of 16-235 we have for example 16-242.The good is that the highlights aren’t really clipped.

Poita Thanks for sharing this
Yes it’s funny grading the reel so I’ve used these two picture as a reference

And this is the result,a bit too much yellow in the skintone…

Yeah I’m in

I like colors and everything!! In my opinion this is the way to go 😃