import groovy.swing.j2d.*
def gr = new GraphicsRenderer()
gr.renderToFile("sample836a.png", 100, 100){
antialias("on")
rect( x: 0, y: 0, width: 100, height: 100,
borderColor: no){
texturePaint(x: 0, y: 0, file: 'sample3b.jpg' )
filters {
contour(levels:10, scale:2, offset:0 )
}
}
}
元画像(sample3b.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKszDjm0kMSf77Wf-1rtVb1Rj1s5pbqFY1DgeCjrofRVz8v7iDcHe9cHD5Y-TaXVj7qS9eTfHKAP5xb8YXG2yg2tt_F_4YRYIVkZrH1YTIx2kgFEUh0vR-lemjGq-Smj6jKqRY/s320/sample3b.jpg)
出力画像(sample836a.png)
![groovyで等高線をつけた画像](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJ2xfmuH0rG12QSSQDsntpSiFDxW4GZBzP7RYO51Xr6VARJiURV7H87F4Rlspa1-2PkoJiYvfSKqftssa-jfWd9PcXvn8ySG-ptY3kblqL-7W8NNh72s7a443mmueZ0_yEaOkl/s320/sample836a.png)
動作環境
Groovy1.6.0 Beta2, JDK1.6 Update11
関連項目
Java2DとJava Image Filters(pixels)を使用して画像に等高線をつける
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