ImageMagick – Command-line Processing

The Anatomy of the Command-line • Input Filename • Command-line Options • Output Filename The ImageMagick command-line tools can be as simple as this: magick image.jpg image.png Or it can be complex with a plethora of options, as in the following: magick label.gif -alpha Set \ \( +clone -shade 110x90 -normalize -negate +clone -compose Plus -composite \) \ \( -clone 0 -shade 110x50 -normalize -chan

[tsuchikazu]

image magicのサイズ指定

[love0hate]

サイズの指定方法のシンタックス。

[yoshuki]

画像のサイズ指定

[labocho]

file-column rmagick imagemagick このオプションが使える？