madVR chroma upscaling comparisons

[Asmodian]

I thought I would make a thread for chroma upscaling comparisons because there are so many possibilities with no obvious best option.

Most of the comparisons use NGU Anti Aliasing very high to double the resolution so differences in chroma upscaling are more obvious. Using an image viewer like IrfanView (http://www.irfanview.com/64bit.htm) to switch between images is the preferred way to compare these images. Scrolling doesn't work as well for noticing differences.

The videos are 10-bit x264 crf 1 encodes from 4:2:0 (YV12) and 4:4:4 (YV24) AviSynth scripts loading the 8-bit BrownFox.png

All images are here:
BrownFox madVR chroma upscaling.zip (http://www.mediafire.com/file/o4gwd863t8l4213/BrownFox_madVR_chroma_upscaling.zip)
Original Videos:
BrownFox 420.mkv (http://www.mediafire.com/file/7hmm3104sshirsp/BrownFox_420.mkv)
BrownFox 444.mkv (http://www.mediafire.com/file/o6xa3d0vnxgucoi/BrownFox_444.mkv)
Original Image:
BrownFox.png (http://www.mediafire.com/file/n33o1t0nj9imf38/BrownFox.png)

This full set of images includes:

1x display ratio, pure chroma upscaling:

444 Ground Truth
Bicubic60
Jinc
super-xbr100
NNEDI3-64
NGU-AA high
NGU-Sharp high


2x display ratio (doubled using NGU-AA very high for luma and NGU-AA med for chroma, because that is what I am using now):

2x 444 (Ground Truth)
Bicubic60
Bicubic60AR
Jinc
JincAR
JincAR-SR3
Bilateral soft
Bilateral sharp
Reconstruction soft
Reconstruction sharp
Reconstruction sharpAR
super-xbr100
super-xbr100AR
NNEDI3-64
NNEDI3-256
NGU-AA low, med, high, veryhigh
NGU-Sharp low, med, high, veryhigh


Some highlights:
2x 444 Ground Truth:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20444_zpsocaccbju.png
2x Bicubic60:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20420%20Bicubic60_zpszpbv7q9n.png
2x Jinc:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20420%20Jinc_zpsljbbfgey.png
2x JincAR-SR3:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20420%20JincAR-SR3_zpsytttmv9o.png
2x Bilateral sharp:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20420%20Bilateral%20sharp_zpsiexov70z.png
2x Reconstruction sharp:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20420%20Reconstruction%20sharp_zpsa40lxpio.png
2x super-xbr100:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20420%20super-xbr100_zpsfdxjkebp.png
2x NNEDI3-64:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20420%20NNEDI3-64_zpsn3m5dadx.png
2x NGU-AA high:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20420%20NGU-AA%20high_zpsid8kd20q.png
2x NGU-Sharp high:
http://i1222.photobucket.com/albums/dd496/asmodian3/BrownFox%202x%20420%20NGU-Sharp%20high_zps2nf30mit.png

[JarrettH]

I don't have the extra horsepower to add NGU chroma to my upscaling profile. What I ended up doing is creating a new profile for native 1080p movies (1080p monitor) to use NGU-AA medium instead of super-xbr.

Comparing your package of screenshots with xbr100, I noticed a more defined and crisper white border closer to the ground truth outline (the black border too, but I think 'on black' shows this better), less aliasing, and slightly less boosted red. :thanks: