This is sooo sick!
Etiquette, expectations, entitlement...
@autoexec_bin | #magiclantern | Discord | Reddit | Server issues
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
Show posts MenuQuote from: andy kh on November 12, 2015, 12:52:46 PM
yeah moire is horrible so not usable at all. i have done so many test in the past and given up after i realise that its not a gud idea for 650d to try slow motion. it was beautiful when i tried inside my room so i went to park to capture some beautiful people and animal. some footage are kool and so many others were not usable. by doing a samll test, noone can say wheather all footage will look gud or not. i tried shooting @ different framrates..40fps. 48fps and 50fps. all footage are very smooth while playing back @23.97 in premiere pro cc but moire is an issue and i get weird colors in some areas of so many footages. i am eager to show you all what i mean but i m away for vaction break. i wil try to share once i get back home.
Quote from: Andy600 on August 08, 2015, 12:02:26 AM
@_OLLE_ Resolve will take care of the moire (the color issues) very easily but you will not get rid of aliasing (stepping artifacts) caused by lineskipping. You can however get good, useable results if you control the depth of field a little and think about what in the scene 'might' cause issues.
Moire is a relatively simple fix in Resolve (V10 onwards). Just select YUV or LAB as the colorspace on the first node and untick channel 1 - this will mean any changes made on that node will only affect the color channels - then simply add blur until the moire disappears. You will lose some saturation but this can be added back in the next node. I prefer to add saturation back in Lab colorspace - i.e. add another node and set it to Lab colorspace, disable channel 1 (luminance) and then add contrast to the node to push the color channels apart.
Aliasing caused by line skipping is very much harder to control (I would say, impossible) so you should be thinking of ways to minimize it.
Your shots look focused to infinity. This is ok for landscape stills where you will shoot at the full resolution of the sensor but you will rarely see any movie using such a deep depth of field for anything other than establishing shots. I guess you shot at F16 - F22 or something!? - try setting your aperture to 5.6 or lower (F2.8 is a nice look on a crop sensor) and use a variable ND to reduce the light and obtain a good exposure. This will defocus the background or foreground sufficiently to avoid moire and aliasing issues and allow you to focus the viewers attention on something specific in the scene (sorry if you already know this basic stuff).
Then all you need to worry about is making sure the in-focus part of the shot has nothing that will invoke aliasing or moire. Fine patterns will cause moire and straight lines cause aliasing so avoid patterned fabrics, powerlines, brick walls - just experiment and you'll build up some valuable knowledge of when and how these problems occur - and when they do, either adjust the shot content, framing, DOF etc or don't hit record.
Anyway, here's your 2 shots that I put though Resolve 12 - took less than 10 seconds to sort the moire - even at default settings without any chroma blur added it is very good but these jpegs use the method I described above.http://we.tl/mmJKJ89pj4
edit: The aspect ratio looked a bit squashed so, assuming it's shot with 720p selected I've scaled the vertical resolution by 1.67x - also, you can slightly reduce the appearance of jaggies if you add a little blur to the luminance channel of another Lab node (untick channels 2&3) then add a normal RGB node and apply some mist (also in the blur and sharpening panel) - it's not amazing but it might rescue some shots at the expense of a little detail - this can also be useful for matching the more detailed resolution of raw shots with H.264 video by simulating some of the downsampling effect of H.264 encoding - but sadly it can't work the other way around.
http://we.tl/VtAP9sXM4H
Quote from: Levas on August 09, 2015, 10:09:07 AM
Wow, I didn't know the easy way to do this chroma blur in resolve, I started with resolve 9 and knew about chroma blur to remove color moire.
That was with blending 2 layers, where you removed saturation in one node and the brightness value in the other node.
(I didn't use it that much because it introduced to much color mixture around edges, I got people with red lining around skin and stuff )
But this colorspace change and just click off one channel is really quick and works very well. Until know I haven't seen the color lining around objects that obvious as back then in Resolve 9.
So or this works way cleaner then the blending 2 nodes way, or Resolve has got much better since then.
I use Resolve Lite 11 at the moment, but the workflow Andy describes comes really close to the RawTherapee results. And it's way faster.
Thanks
Quote from: Levas on July 26, 2015, 10:55:13 AM
DaVinci Resolve Lite works best for upscaling to 1920 wide.
I uploaded same jpg and tiff examples, upscaled by resolve to 1920x480 resolution. (In the same google drive folder link as in the post above)
Not that bad is it
So it's not your camera, it's how you handle the dng's in post.
You know what they say, "we will fix that in post"
Page created in 0.106 seconds with 13 queries.