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ImageMagickでドット絵を整数倍にするワンライナー

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最初に言っておきます。

ImageMagick入っている前提です!!

48x48のドット絵(sanae_48x48.png)を2倍の96x96のドット絵にする場合です。
(Photoshopのニアレストネイバー法みたいな感じの拡大ができます!)

scale='2'; filename='sanae_48x48.png'; converted_filename='sanae_96x96.png'; converted_width=`expr \`identify -format "%w" $filename\` \* $scale`; `convert -filter box -resize $converted_width -verbose $filename $converted_filename` 


変換前(48x48のドット絵)
sanae_48x48.png

変換後(96x96のドット絵)
sanae_96x96.png

入力によって変更する必要がある値は以下の3つです。

scale(整数倍)
filename(拡大前のファイル名)
converted_filename(拡大後のファイル名)
chocomelon
Androidの投稿多め。難しいことはわかりません。 よくインターネットの人にディスられます_(:3」∠)_
https://twitter.com/__chocomelon
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