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# Real-ESRGAN
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[English](README.md) **|** [简体中文](README_CN.md)
1. Real-ESRGAN的[Colab Demo](https://colab.research.google.com/drive/1k2Zod6kSHEvraybHl50Lys0LerhyTMCo?usp=sharing) <a href="https://colab.research.google.com/drive/1k2Zod6kSHEvraybHl50Lys0LerhyTMCo?usp=sharing"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="google colab logo"></a>.
2. **支持Intel/AMD/Nvidia显卡**的绿色版exe文件 [Windows版](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/realesrgan-ncnn-vulkan-20210901-windows.zip) / [Linux版](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/realesrgan-ncnn-vulkan-20210901-ubuntu.zip) / [macOS版](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/realesrgan-ncnn-vulkan-20210901-macos.zip),详情请移步[这里](#便携版(绿色版)可执行文件)。NCNN的实现在 [Real-ESRGAN-ncnn-vulkan](https://github.com/xinntao/Real-ESRGAN-ncnn-vulkan)。
感谢大家的关注和使用:-) 关于动漫插画的模型,目前还有很多问题,主要有: 1. 视频处理不了; 2. 景深虚化有问题; 3. 不可调节, 效果过了; 4. 改变原来的风格。大家提供了很好的反馈。这些反馈会逐步更新在 [这个文档](feedback.md)。希望不久之后,有新模型可以使用.
Real-ESRGAN 的目标是开发出**实用的图像修复算法**。<br>
我们在 ESRGAN 的基础上使用纯合成的数据来进行训练以使其能被应用于实际的图片修复的场景顾名思义Real-ESRGAN
:art: Real-ESRGAN 需要也很欢迎你的贡献如新功能、模型、bug修复、建议、维护等等。详情可以查看[CONTRIBUTING.md](CONTRIBUTING.md),所有的贡献者都会被列在[此处](README_CN.md#hugs-感谢)。
:question: 常见的问题可以在[FAQ.md](FAQ.md)中找到答案。(好吧,现在还是空白的=-=||
:triangular_flag_on_post: **更新**
- :white_check_mark: 添加了ncnn 实现:[Real-ESRGAN-ncnn-vulkan](https://github.com/xinntao/Real-ESRGAN-ncnn-vulkan).
- :white_check_mark: 添加了 [*RealESRGAN_x4plus_anime_6B.pth*](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/RealESRGAN_x4plus_anime_6B.pth)对二次元图片进行了优化并减少了model的大小。详情 以及 与[waifu2x](https://github.com/nihui/waifu2x-ncnn-vulkan)的对比请查看[**anime_model.md**](docs/anime_model.md)
- :white_check_mark: 支持用户在自己的数据上进行微调 (finetune)[详情](Training.md#Finetune-Real-ESRGAN-on-your-own-dataset)
- :white_check_mark: 支持使用[GFPGAN](https://github.com/TencentARC/GFPGAN)**增强人脸**
- :white_check_mark: 通过[Gradio](https://github.com/gradio-app/gradio)添加到了[Huggingface Spaces](https://huggingface.co/spaces)(一个机器学习应用的在线平台):[Gradio在线版](https://huggingface.co/spaces/akhaliq/Real-ESRGAN)。感谢[@AK391](https://github.com/AK391)
- :white_check_mark: 支持任意比例的缩放:`--outscale`(实际上使用`LANCZOS4`来更进一步调整输出图像的尺寸)。添加了*RealESRGAN_x2plus.pth*模型
- :white_check_mark: [推断脚本](inference_realesrgan.py)支持: 1) 分块处理**tile**; 2) 带**alpha通道**的图像; 3) **灰色**图像; 4) **16-bit**图像.
- :white_check_mark: 训练代码已经发布,具体做法可查看:[Training.md](Training.md)。
---
如果 Real-ESRGAN 对你有帮助,可以给本项目一个 Star :star: ,或者推荐给你的朋友们,谢谢!:blush: <br/>
其他推荐的项目:<br/>
:arrow_forward: [GFPGAN](https://github.com/TencentARC/GFPGAN): 实用的人脸复原算法 <br>
:arrow_forward: [BasicSR](https://github.com/xinntao/BasicSR): 开源的图像和视频工具箱<br>
:arrow_forward: [facexlib](https://github.com/xinntao/facexlib): 提供与人脸相关的工具箱<br>
:arrow_forward: [HandyView](https://github.com/xinntao/HandyView): 基于PyQt5的图片查看器方便查看以及比较 <br>
---
### :book: Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data
> [[论文](https://arxiv.org/abs/2107.10833)] &emsp; [项目主页] &emsp; [[YouTube 视频](https://www.youtube.com/watch?v=fxHWoDSSvSc)] &emsp; [[B站视频](https://www.bilibili.com/video/BV1H34y1m7sS/)] &emsp; [[Poster](https://xinntao.github.io/projects/RealESRGAN_src/RealESRGAN_poster.pdf)] &emsp; [[PPT](https://docs.google.com/presentation/d/1QtW6Iy8rm8rGLsJ0Ldti6kP-7Qyzy6XL/edit?usp=sharing&ouid=109799856763657548160&rtpof=true&sd=true)]<br>
> [Xintao Wang](https://xinntao.github.io/), Liangbin Xie, [Chao Dong](https://scholar.google.com.hk/citations?user=OSDCB0UAAAAJ), [Ying Shan](https://scholar.google.com/citations?user=4oXBp9UAAAAJ&hl=en) <br>
> Tencent ARC Lab; Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
<p align="center">
<img src="assets/teaser.jpg">
</p>
---
我们提供了一套训练好的模型(*RealESRGAN_x4plus.pth*)可以进行4倍的超分辨率。<br>
**现在的 Real-ESRGAN 还是有几率失败的,因为现实生活的降质过程比较复杂。**<br>
而且,本项目对**人脸以及文字之类**的效果还不是太好,但是我们会持续进行优化的。<br>
Real-ESRGAN 将会被长期支持,我会在空闲的时间中持续维护更新。
这些是未来计划的几个新功能:
- [ ] 优化人脸
- [ ] 优化文字
- [x] 优化动画图像
- [ ] 支持更多的超分辨率比例
- [ ] 可调节的复原
如果你有好主意或需求,欢迎在 issue 或 discussion 中提出。<br/>
如果你有一些 Real-ESRGAN 中有问题的照片,你也可以在 issue 或者 discussion 中发出来。我会留意(但是不一定能解决:stuck_out_tongue:)。如果有必要的话,我还会专门开一页来记录那些有待解决的图像。
---
### 便携版(绿色版)可执行文件
你可以下载**支持Intel/AMD/Nvidia显卡**的绿色版exe文件 [Windows版](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/realesrgan-ncnn-vulkan-20210901-windows.zip) / [Linux版](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/realesrgan-ncnn-vulkan-20210901-ubuntu.zip) / [macOS版](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/realesrgan-ncnn-vulkan-20210901-macos.zip)。
绿色版指的是这些exe你可以直接运行放U盘里拷走都没问题因为里面已经有所需的文件和模型了。它不需要 CUDA 或者 PyTorch运行环境。<br>
你可以通过下面这个命令来运行Windows版本的例子更多信息请查看对应版本的README.md
```bash
./realesrgan-ncnn-vulkan.exe -i 输入图像.jpg -o 输出图像.png
```
我们提供了三种模型:
1. realesrgan-x4plus默认
2. reaesrnet-x4plus
3. realesrgan-x4plus-anime针对动漫插画图像优化有更小的体积
你可以通过`-n`参数来使用其他模型,例如`./realesrgan-ncnn-vulkan.exe -i 二次元图片.jpg -o 二刺螈图片.png -n realesrgan-x4plus-anime`
### 可执行文件的用法
1. 更多细节可以参考 [Real-ESRGAN-ncnn-vulkan](https://github.com/xinntao/Real-ESRGAN-ncnn-vulkan#computer-usages).
2. 注意:可执行文件并没有支持 python 脚本 `inference_realesrgan.py` 中所有的功能,比如 `outscale` 选项) .
```console
Usage: realesrgan-ncnn-vulkan.exe -i infile -o outfile [options]...
-h show this help
-v verbose output
-i input-path input image path (jpg/png/webp) or directory
-o output-path output image path (jpg/png/webp) or directory
-s scale upscale ratio (4, default=4)
-t tile-size tile size (>=32/0=auto, default=0) can be 0,0,0 for multi-gpu
-m model-path folder path to pre-trained models(default=models)
-n model-name model name (default=realesrgan-x4plus, can be realesrgan-x4plus | realesrgan-x4plus-anime | realesrnet-x4plus)
-g gpu-id gpu device to use (default=0) can be 0,1,2 for multi-gpu
-j load:proc:save thread count for load/proc/save (default=1:2:2) can be 1:2,2,2:2 for multi-gpu
-x enable tta mode
-f format output image format (jpg/png/webp, default=ext/png)
```
由于这些exe文件会把图像分成几个板块然后来分别进行处理再合成导出输出的图像可能会有一点割裂感而且可能跟PyTorch的输出不太一样
这些exe文件均基于[Tencent/ncnn](https://github.com/Tencent/ncnn)以及[nihui](https://github.com/nihui)的[realsr-ncnn-vulkan](https://github.com/nihui/realsr-ncnn-vulkan),感谢!
---
## :wrench: 依赖以及安装
- Python >= 3.7 (推荐使用[Anaconda](https://www.anaconda.com/download/#linux)或[Miniconda](https://docs.conda.io/en/latest/miniconda.html))
- [PyTorch >= 1.7](https://pytorch.org/)
#### 安装
1. 把项目克隆到本地
```bash
git clone https://github.com/xinntao/Real-ESRGAN.git
cd Real-ESRGAN
```
2. 安装各种依赖
```bash
# 安装 basicsr - https://github.com/xinntao/BasicSR
# 我们使用BasicSR来训练以及推断
pip install basicsr
# facexlib和gfpgan是用来增强人脸的
pip install facexlib
pip install gfpgan
pip install -r requirements.txt
python setup.py develop
```
## :zap: 快速上手
### 普通图片
下载我们训练好的模型: [RealESRGAN_x4plus.pth](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.0/RealESRGAN_x4plus.pth)
```bash
wget https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.0/RealESRGAN_x4plus.pth -P experiments/pretrained_models
```
推断!
```bash
python inference_realesrgan.py --model_path experiments/pretrained_models/RealESRGAN_x4plus.pth --input inputs --face_enhance
```
结果在`results`文件夹
### 动画图片
<p align="center">
<img src="https://raw.githubusercontent.com/xinntao/public-figures/master/Real-ESRGAN/cmp_realesrgan_anime_1.png">
</p>
训练好的模型: [RealESRGAN_x4plus_anime_6B](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/RealESRGAN_x4plus_anime_6B.pth)<br>
有关[waifu2x](https://github.com/nihui/waifu2x-ncnn-vulkan)的更多信息和对比在[**anime_model.md**](docs/anime_model.md)中。
```bash
# 下载模型
wget https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/RealESRGAN_x4plus_anime_6B.pth -P experiments/pretrained_models
# 推断
python inference_realesrgan.py --model_path experiments/pretrained_models/RealESRGAN_x4plus_anime_6B.pth --input inputs
```
结果在`results`文件夹
### Python 脚本的用法
1. 虽然你实用了 X4 模型,但是你可以 **输出任意尺寸比例的图片**,只要实用了 `outscale` 参数. 程序会进一步对模型的输出图像进行缩放。
```console
Usage: python inference_realesrgan.py --model_path experiments/pretrained_models/RealESRGAN_x4plus.pth --input infile --output outfile [options]...
A common command: python inference_realesrgan.py --model_path experiments/pretrained_models/RealESRGAN_x4plus.pth --input infile --netscale 4 --outscale 3.5 --half --face_enhance
-h show this help
--input Input image or folder. Default: inputs
--output Output folder. Default: results
--model_path Path to the pre-trained model. Default: experiments/pretrained_models/RealESRGAN_x4plus.pth
--netscale Upsample scale factor of the network. Default: 4
--outscale The final upsampling scale of the image. Default: 4
--suffix Suffix of the restored image. Default: out
--tile Tile size, 0 for no tile during testing. Default: 0
--face_enhance Whether to use GFPGAN to enhance face. Default: False
--half Whether to use half precision during inference. Default: False
--ext Image extension. Options: auto | jpg | png, auto means using the same extension as inputs. Default: auto
```
## :european_castle: 模型库
- [RealESRGAN_x4plus](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.0/RealESRGAN_x4plus.pth): X4 model for general images
- [RealESRGAN_x4plus_anime_6B](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/RealESRGAN_x4plus_anime_6B.pth): Optimized for anime images; 6 RRDB blocks (slightly smaller network)
- [RealESRGAN_x2plus](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.1/RealESRGAN_x2plus.pth): X2 model for general images
- [RealESRNet_x4plus](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.1/RealESRNet_x4plus.pth): X4 model with MSE loss (over-smooth effects)
- [official ESRGAN_x4](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.1/ESRGAN_SRx4_DF2KOST_official-ff704c30.pth): official ESRGAN model (X4)
下面是 **判别器** 模型, 他们经常被用来微调fine-tune模型.
- [RealESRGAN_x4plus_netD](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.3/RealESRGAN_x4plus_netD.pth)
- [RealESRGAN_x2plus_netD](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.3/RealESRGAN_x2plus_netD.pth)
- [RealESRGAN_x4plus_anime_6B_netD](https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/RealESRGAN_x4plus_anime_6B_netD.pth)
## :computer: 训练在你的数据上微调Fine-tune
这里有一份详细的指南:[Training.md](Training.md).
## BibTeX 引用
@Article{wang2021realesrgan,
title={Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data},
author={Xintao Wang and Liangbin Xie and Chao Dong and Ying Shan},
journal={arXiv:2107.10833},
year={2021}
}
## :e-mail: 联系我们
如果你有任何问题,请通过 `xintao.wang@outlook.com` 或 `xintaowang@tencent.com` 联系我们。
## :hugs: 感谢
感谢所有的贡献者大大们~
- [AK391](https://github.com/AK391): 通过[Gradio](https://github.com/gradio-app/gradio)添加到了[Huggingface Spaces](https://huggingface.co/spaces)(一个机器学习应用的在线平台):[Gradio在线版](https://huggingface.co/spaces/akhaliq/Real-ESRGAN)。
- [Asiimoviet](https://github.com/Asiimoviet): 把 README.md 文档 翻译成了中文。
- [2ji3150](https://github.com/2ji3150): 感谢详尽并且富有价值的[反馈、建议](https://github.com/xinntao/Real-ESRGAN/issues/131).