require 'RMagick'
include Magick
images = ImageList.new("sf2.jpg")
images[0] = images.fx("0.4*p")
images.modulate(1.2,0.2,1).
median_filter(2).
sepiatone(95).
write("sample1158a.png")
exit
元画像(sf2.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJ1EJE0MjxODrIa0bo4heVJC4xjtLQSlePQ6v_E3DMUYdEN3qhHxM3kfdB59IBKx_2eM2NpnEKC7J1pPeDOXu2dha6T0-ssZln39ttmezXCo1iH1gbLbxXjX55ArT3D47O6LYUwA/s320/sf2.jpg)
出力画像(sample1158a.png)
![RMagickで抽象的なセピア調に変換した画像](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgekJHaFi5KJ2Cz8EJ1Nz00kdJ43sTeD1aPMgseisAVCH86QoVntaw1NpBgAr2kd-IXaD3yuGgQ4TTSyvGYtuJhwVA-q0W2V72j_1Xaa8PO3OslM7gPMHkaN7avs1QQjcHIazaKRA/s320/sample1158a.png)
動作環境
ruby1.8.6, rmagick2.9.0
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