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-   -   Field repeats, tearing, wobbly lines? (https://www.digitalfaq.com/forum/video-restore/8041-field-repeats-tearing.html)

koberulz 09-25-2017 04:43 PM

3 Attachment(s)
Yeah, I pushed the master controls all the way to orange, and then pushed the mids a fair way as well (although closer to green). I used the frame of the ref that I posted earlier to discuss the ghosting/haloing, keying on his pants for the darks, his stomach for the mids and his shoulder for the brights.

Then on top of that some secondary corrections to desaturate the blues in the crowd and on the blue team's jerseys, which were overwhelming everything else in the picture, and push the wooden stands back towards red from the greenish yellow they'd become.

Unfortunately the colors vary so much that even if they're absolutely perfect for that ref shot (although now that you mention it the mids do look a bit red, although I have f.lux on at the moment), they're garbage elsewhere. VHP goes through about ten different skintones as they zoom in and out in that sample clip.

I'm outputting to three MP4 files: 576i25 anamorphic (I think that's the term?), 576p25 square pixel, and 720p50 square pixel. Using x264 through MeGUI to create .264 files, Audacity to create 224kbps AC3 files, and MeGUI's MP4 muxer to create the final MP4, complete with chapter markers. I also have a chapter file set up for HCEnc, so I can pull the 576i25 AVS into there and go to DVD.

The 576i25 version has Force SAR set to 12:11 in MeGUI's settings, which I thought was right, but if I play it back it looks wider than the 576p version. Have I flagged it incorrectly, screwed up the math for the square-pixel version, or is VLC just not reading the flag?

And how awesome are those colors? JFC.

Attachment 7924

Attachment 7925

Attachment 7926

sanlyn 09-25-2017 05:20 PM

I wouldn't say that red, orange, and green are awesome for skin colors, but whatever floats your boat. I can't answer for what MeGUI, etc., do to video, I gave up on them a long time ago. I don't know which image is the square-pixel version or not. The top image aspect ratio is 1.37:1, not 4:3. Each image is from a different frame. PAL 4:3 standrard def has a pixel ratio of 12:11, yes, but recall that NTSC and PAL SMPTE 4:3 uses only 704 of the 720 pixels in the originals, and that has been modified by all the tape duping in various VCR's, and not all players fill the frame the same way -- so how to determine the exact ratios from the original camera recording would be anyone's guess.

Autocolor and autogain on the original cameras didn't do anybody any favors. Colors will naturally change after a long zoom because autocolor is looking at different color dominance factors when the camera angle changes.

koberulz 09-25-2017 11:31 PM

The top one is 576i, middle 576p, bottom 720p. Doesn't really matter which frame they're from, or what ratio was originally used, all three should match each other.

Quote:

I wouldn't say that red, orange, and green are awesome for skin colors, but whatever floats your boat.
I think you missed the sarcasm.

sanlyn 09-26-2017 03:37 AM

No, I caught it. Maybe I needed to add this guy to my own comment: :D.

:)

lordsmurf 09-26-2017 05:16 AM

I'm guessing you're a basketball fan?

koberulz 09-26-2017 06:44 AM

Checking with MediaInfo the 576i file is 720x576 4:3, and the 576p file is 768x 576 4:3. Not sure what's going on there.

Quote:

Originally Posted by lordsmurf (Post 51030)
I'm guessing you're a basketball fan?

No idea where you got that impression. :P

sanlyn 09-26-2017 07:13 AM

Quote:

Originally Posted by koberulz (Post 51031)
Checking with MediaInfo the 576i file is 720x576 4:3, and the 576p file is 768x 576 4:3. Not sure what's going on there.

The top image of the three pics in post #67 is 787x576, which isn't 4:3, and you can't use odd-numbers for the width anyway. That one threw me off. 768x576 for square-pixel is correct for the middle image.

koberulz 09-26-2017 07:20 AM

VLC is obviously doing something to it, then. Not sure what.

koberulz 09-27-2017 05:04 PM

1 Attachment(s)
Shifted the mids away from red a bit and tweaked a couple of the secondary corrections.


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