upscaling
scale up
https://source.unsplash.com/featured/?upscaling#.png
/suto3/google.iconupscaling
/suto3/Google画像検索.iconupscaling
/suto3/Google定義検索.icon upscaling
/suto3/wikipedia.iconupscaling
/suto3/weblio.icon upscaling
/suto3/kotobank.icon upscaling
/suto3/jisho.icon upscaling