public int filterRGB(int x,int y,int pixel) { return pixel; } } 要想取得自己的效果,需要修改ReverseColorModel.java中的三个方法,getRed、getGreen、getBlue。 下面是上面的效果的一个总的演示程序。
/*GrayImage.java*/ /*@author:cherami */ /*email:cherami@163.net*/ import java.awt.*; import java.awt.image.*; import javax.swing.*; import java.awt.color.*;
public class GrayImage extends JFrame{ Image source,gray,gray3,clip,bigimg; BufferedImage bimg,gray2; GrayFilter filter,filter2; ImageIcon ii; ImageFilter cropFilter; int iw,ih; public GrayImage() { ii=new ImageIcon(\"images/11.gif\"); source=ii.getImage(); iw=source.getWidth(this); ih=source.getHeight(this); filter=new GrayFilter(); filter2=new GrayFilter(GrayModel.CS_FLOAT); gray=createImage(new FilteredImageSource(source.getSource(),filter)); gray3=createImage(new FilteredImageSource(source.getSource(),filter2)); cropFilter=new CropImageFilter(5,5,iw-5,ih-5); clip=createImage(new FilteredImageSource(source.getSource(),cropFilter)); bigimg=source.getScaledInstance(iw*2,ih*2,Image.SCALE_DEFAULT); MediaTracker mt=new MediaTracker(this); mt.addImage(gray,0); try { mt.waitForAll(); } catch (Exception e) { } } public void paint(Graphics g) { Graphics2D g2=(Graphics2D)g; bimg=new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB); Graphics2D srcG = bimg.createGraphics(); RenderingHints rhs = g2.getRenderingHints(); srcG.setRenderingHints(rhs); srcG.drawImage(source, 0, 0, null); ColorSpace graySpace=ColorSpace.getInstance(ColorSpace.CS_GRAY); ColorConvertOp op=new ColorConvertOp(graySpace,rhs); gray2=new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB); op.filter(bimg,gray2); g2.drawImage(source,40,40,this); g2.drawImage(gray,80,40,this); g2.drawImage(gray2,120,40,this); g2.drawImage(gray3,160,40,this); g2.drawImage(clip,40,80,this); g2.drawImage(bigimg,80,80,this); } public void update(Graphics g) { paint(g); } public static void main(String args[]) { GrayImage m=new GrayImage(); m.setSize(400,400); m.setVisible(true); } }
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