Getnative

Find the native resolution(s) of upscaled material (mostly anime)

Usage

Start by executing:

$ getnative [--args] inputFile

If getnative could not be found, try executing this:

# Linux
$ python -m getnative [--args] inputFile

# Windows
$ py -3 -m getnative [--args] inputFile

or

Start by executing:

$ python -m getnative [--args] inputFile

That's it.

Requirements

To run this script you will need:

• Python 3.6
• matplotlib
• Vapoursynth R45+
• descale
• ffms2 or lsmash or imwri
  *imwri: ImageMagick7 is required for macOS and Linux

Installation

After installing the above prerequisites, install the project via:

$ pip install getnative

or

• Download all files from github
• Install all Python dependencies through pip install -r requirements.txt

Recommended Windows Installation

Install these programs from their websites:

• Vapoursynth (includes imwri)

Once Vapoursynth is installed:

vsrepo.py install descale
vsrepo.py install ffms2
vsrepo.py install lsmas

Install getnative (and Python dependencies):

pip install getnative

Example Output

Input Command:

$ getnative -k bicubic -b 0.33 -c 0.33 -dir "../../Downloads" "../../Downloads/unknown.png"

Terminal Output:

Using imwri as source filter

500/500

Output Path: /Users/infi/Downloads/results

Bicubic b 0.33 c 0.33 AR: 1.78 Steps: 1
Native resolution(s) (best guess): 873p

done in 13.56s

Output Graph:

Output TXT (summary):

 868		 | 0.0000863251		 | 0.93
 869		 | 0.0000828592		 | 1.04
 870		 | 0.0000734709		 | 1.13
 871		 | 0.0000555885		 | 1.32
 872		 | 0.0000596791		 | 0.93
 873		 | 0.0000011579		 | 51.54
 874		 | 0.0000385670		 | 0.03
 875		 | 0.0000433674		 | 0.89
 876		 | 0.0000548476		 | 0.79
 877		 | 0.0000614557		 | 0.89
 878		 | 0.0000740702		 | 0.83

Args

Property	Description	Default value	Type
frame	Specify a frame for the analysis.	num_frames//3	Int
kernel	Resize kernel to be used	bicubic	String
bicubic-b	B parameter of bicubic resize	1/3	Float
bicubic-c	C parameter of bicubic resize	1/3	Float
lanczos-taps	Taps parameter of lanczos resize	3	Int
aspect-ratio	Force aspect ratio. Only useful for anamorphic input	w/h	Float
min-height	Minimum height to consider	500	Int
max-height	Maximum height to consider	1000	Int
is-image	Force image input	False	Action
generate-images	Save detail mask as png	False	Action
plot-scaling	Scaling of the y axis. Can be "linear" or "log"	log	String
plot-format	Format of the output image. Specify multiple formats separated by commas. Can be svg, png, tif(f), and more	svg	String
show-plot-gui	Show an interactive plot gui window.	False	Action
no-save	Do not save files to disk.	False	Action
stepping	This changes the way getnative will handle resolutions. Example steps=3 [500p, 503p, 506p ...]	1	Int
output-dir	Sets the path of the output dir where you want all results to be saved. (/results will always be added as last folder)	(CWD)/results	String

CLI Args

Property	Description	Default value	Type
help	Automatically render the usage information when running -h or --help	False	Action
	Absolute or relative path to the input file	Required	String
mode	Choose a predefined mode ["bilinear", "bicubic", "bl-bc", "all"]	None	String
use	Use specified source filter (e.g. "lsmas.LWLibavSource")	None	String

Warning

This script's success rate is far from perfect. If possible, do multiple tests on different frames from the same source. Bright scenes generally yield the most accurate results. Graphs tend to have multiple notches, so the script's assumed resolution may be incorrect. Also, due to the current implementation of the autoguess, it is not possible for the script to automatically recognize 1080p productions. Use your eyes or anibin if necessary.

Thanks

BluBb_mADe, kageru, FichteFoll, stux!, LittlePox

Help?

Join https://discord.gg/UERrfucRFD (Ask in #encode-autism for help)