https://github.com/nagadomi/waifu2x
在线测试工具
http://waifu2x.udp.jp/
https://bigjpg.com
它的window客户端开源版本
https://github.com/lltcggie/waifu2x-caffe/releases
其它不常用GUI
https://github.com/imxieyi/waifu2x-mac
https://github.com/khws4v1/waifu2x-converter-qt