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Java - Dilate3

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Java - Dilate3

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// pixel before the filter
// |--|--|--|
// |  |  |  |
// |--|--|--|
// |  | *|  |
// |--|--|--|
// |  |  |  |
// |--|--|--|

// pixel after the filter
// |--|--|--|
// | *| *| *|
// |--|--|--|
// | *| *| *|
// |--|--|--|
// | *| *| *|
// |--|--|--|


public BufferedImage dilate3(BufferedImage bi)
	{
		BufferedImage buff = new BufferedImage(bi.getWidth(), bi.getHeight(), bi.getType());
		
		Kernel kernel = new Kernel(3, 3, new float[] {
														1f, 1f, 1f, 
														1f, 1f, 1f, 
														1f, 1f, 1f
													 });
		
		ConvolveOp op = new ConvolveOp(kernel);
		op.filter(bi, buff);
		
		return buff;
	}
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