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893天前BufferedImage bi_src = ...; |
ImageIO.write(new ScaleFilter(100,100), "jpeg", dest); |
//源代码片段来自云代码http://yuncode.net |
|
public class ScaleFilter extends AbstractBufferedImageOp { |
private int width; |
private int height; |
/** |
* Construct a ScaleFilter. |
*/ |
public ScaleFilter() { |
this(32, 32); |
} |
/** |
* Construct a ScaleFilter. |
* @param width the width to scale to |
* @param height the height to scale to |
*/ |
public ScaleFilter( int width, int height ) { |
this.width = width; |
this.height = height; |
} |
public BufferedImage filter( BufferedImage src, BufferedImage dst ) { |
if ( dst == null ) { |
ColorModel dstCM = src.getColorModel(); |
dst = new BufferedImage(dstCM, dstCM.createCompatibleWritableRaster( width, height ), |
dstCM.isAlphaPremultiplied(), null); |
} |
Image scaleImage = src.getScaledInstance( width, height, Image.SCALE_AREA_AVERAGING ); |
Graphics2D g = dst.createGraphics(); |
g.drawImage( scaleImage, 0, 0, width, height, null ); |
g.dispose(); |
return dst; |
} |
public String toString() { |
return "Distort/Scale"; |
} |
}//源代码片段来自云代码http://yuncode.net |
|
