最近无聊,研究了下图像增强,虽然看不懂算法,但是这个应用还是蛮好玩的.可以把分辨率较低的图像转换为高分辨率.google的这个在线python工具还是很方便,不用本地运行.就是运行的过程有些坎坷,不过好在可以看到效果.
colab 链接:

https://colab.research.google.com/drive/1NS57R0L_xz_Ef4suoA5zcQBbPk5TZ0mE?hl=zh-cn#scrollTo=8Pa6tyEp0Ix0

这里贴下代码,万一失效了呢!

import os

path = '/content/drive/MyDrive/py'

#! git clone https://github.com/xinntao/ESRGAN;
# %cd Real-ESRGAN

# ! git clone https://github.com/xinntao/Real-ESRGAN.git
%cd /content/Real-ESRGAN
# /content/Real-ESRGAN
# ! pip install basicsr
# # facexlib and gfpgan are for face enhancement
# ! pip install facexlib
# ! pip install gfpgan
# ! pip install -r requirements.txt
# ! python setup.py develop
# ! wget https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.0/RealESRGAN_x4plus.pth -P weights
! python inference_realesrgan.py -n RealESRGAN_x4plus  \
-i "/content/drive/MyDrive/input_pic" -o "/content/drive/MyDrive/result" \
-s 16 --tile 30
# --face_enhance --face_enhance_level 2 --tile 600 --size 2160 --width 3840

前面的这一串 /content/drive/MyDrive/ 是外挂的 google 硬盘的地址,后面紧跟着的是文件路径.实测超分辨率后文件大小增大了十几倍,效果还是很明显的!

对比效果: