import groovy.swing.j2d.*
def gr = new GraphicsRenderer()
gr.renderToFile("sample1142a.png", 200, 200){
antialias("on")
rect( x: 0, y: 0, width: 200, height: 200,
borderColor: no){
texturePaint(x: 0, y: 0, file: 'sf.jpg' )
filters {
grayscale()
// numColorsは8から256
// see com.jhlabs.image.QuantizeFilter.
quantize(numColors: 8)
}
}
}
元画像(sf.jpg)
出力画像(sample1142a.png)
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