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Chainer implementation of waifu2x

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Chainer implementation of waifu2x.


usage: [-h] [--gpu GPU] [--input INPUT] [--output OUTPUT]
                   [--quality QUALITY] [--model_dir MODEL_DIR]
                   [--scale_ratio SCALE_RATIO] [--tta]
                   [--batch_size BATCH_SIZE] [--block_size BLOCK_SIZE]
                   [--extension {png,webp}]
                   [--arch {VGG7,0,UpConv7,1,ResNet10,2,UpResNet10,3}]
                   [--method {noise,scale,noise_scale}]
                   [--noise_level {0,1,2,3}] [--color {y,rgb}]
                   [--tta_level {2,4,8}]
                   [--width WIDTH | --height HEIGHT | --shorter_side SHORTER_SIDE | --longer_side LONGER_SIDE]

Chainer implementation of waifu2x

optional arguments:
  -h, --help            show this help message and exit
  --gpu GPU, -g GPU
  --input INPUT, -i INPUT
  --output OUTPUT, -o OUTPUT
  --quality QUALITY, -q QUALITY
  --model_dir MODEL_DIR, -d MODEL_DIR
  --scale_ratio SCALE_RATIO, -s SCALE_RATIO
  --tta, -t
  --batch_size BATCH_SIZE, -b BATCH_SIZE
  --block_size BLOCK_SIZE, -l BLOCK_SIZE
  --extension {png,webp}, -e {png,webp}
  --arch {VGG7,0,UpConv7,1,ResNet10,2,UpResNet10,3}, -a {VGG7,0,UpConv7,1,ResNet10,2,UpResNet10,3}
  --method {noise,scale,noise_scale}, -m {noise,scale,noise_scale}
  --noise_level {0,1,2,3}, -n {0,1,2,3}
  --color {y,rgb}, -c {y,rgb}
  --tta_level {2,4,8}, -T {2,4,8}
  --width WIDTH, -W WIDTH
  --height HEIGHT, -H HEIGHT
  --shorter_side SHORTER_SIDE, -S SHORTER_SIDE
  --longer_side LONGER_SIDE, -L LONGER_SIDE

Table of Contents


A high-level overview of how the documentation is organized organized will help you know where to look for certain things:

  • The Technical Reference documents APIs and other aspects of the machinery. This documentation describes how to use the classes and functions at a lower level and assume that you have a good high-level understanding of the software.

Install With PIP

pip install waifu2x

Head to for more info

Language information

Built for

This program has been written for Python versions 3.7 - 3.10 and has been tested with both 3.7 and 3.10

Install Python on Windows


choco install python

Windows -

To install Python, go to and download the latest version.

Install Python on Linux


sudo apt install python3.x


sudo dnf install python3.x

Install Python on MacOS


brew install python@3.x

MacOS -

To install Python, go to and download the latest version.

How to run


  • Module py -3.x -m [module] or [module] (if module installs a script)

  • File py -3.x [file] or ./[file]

Linux/ MacOS

  • Module python3.x -m [module] or [module] (if module installs a script)

  • File python3.x [file] or ./[file]

Download Project


Using The Command Line

  1. Press the Clone or download button in the top right
  2. Copy the URL (link)
  3. Open the command line and change directory to where you wish to clone to
  4. Type 'git clone' followed by URL in step 2
    git clone

More information can be found at

Using GitHub Desktop

  1. Press the Clone or download button in the top right
  2. Click open in desktop
  3. Choose the path for where you want and click Clone

More information can be found at

Download Zip File

  1. Download this GitHub repository
  2. Extract the zip archive
  3. Copy/ move to the desired location

Community Files


MIT License (See the LICENSE for more information.)


See the Changelog for more information.

Code of Conduct

Online communities include people from many backgrounds. The Project contributors are committed to providing a friendly, safe and welcoming environment for all. Please see the Code of Conduct for more information.


Contributions are welcome, please see the Contributing Guidelines for more information.


Thank you for improving the security of the project, please see the Security Policy for more information.


Thank you for using this project, I hope it is of use to you. Please be aware that those involved with the project often do so for fun along with other commitments (such as work, family, etc). Please see the Support Policy for more information.


The rationale acts as a guide to various processes regarding projects such as the versioning scheme and the programming styles used. Please see the Rationale for more information.

Project details

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Source Distribution

waifu2x-2022.2.tar.gz (52.5 MB view hashes)

Uploaded source

Built Distribution

waifu2x-2022.2-py3-none-any.whl (52.5 MB view hashes)

Uploaded py3

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