11 lines
354 B
Scala
11 lines
354 B
Scala
object BitmapOps {
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def luminosity(c:Color)=(0.2126*c.getRed + 0.7152*c.getGreen + 0.0722*c.getBlue+0.5).toInt
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def grayscale(bm:RgbBitmap)={
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val image=new RgbBitmap(bm.width, bm.height)
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for(x <- 0 until bm.width; y <- 0 until bm.height; l=luminosity(bm.getPixel(x,y)))
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image.setPixel(x, y, new Color(l,l,l))
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image
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}
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}
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