[英]How to apply black and white filter on image using BufferedImageOp?
我確實有這段代碼使用BufferedImageOp
來提高圖像的清晰度
class DecreaseSharpenFilter implements MyFilter{
public BufferedImage processImage(BufferedImage image) {
float[] decreaseSharpnessMatrix = {0.0f, +1.0f, 0.0f, +1.0f , -5.0f, +1.0f, 0.0f, +1.0f, 0.0f };
BufferedImageOp DecreaseSharpenFilter = new ConvolveOp(new Kernel(3, 3, decreaseSharpnessMatrix),
ConvolveOp.EDGE_NO_OP, null);
return DecreaseSharpenFilter.filter(image, null);
}
}
現在,我想通過對這些行進行修改來將圖像轉換為黑白圖像,但是我真的不知道在矩陣中使用什么值以及如何對其進行卷積。
您只需要創建一個色彩空間,然后將其傳遞給您的convertOP
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
ColorConvertOp op = new ColorConvertOp(cs, null);
BufferedImage image = op.filter(image, null);
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