Java代码
- import java.awt.Rectangle;
- import java.awt.image.BufferedImage;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.util.Iterator;
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- import javax.imageio.ImageIO;
- import javax.imageio.ImageReadParam;
- import javax.imageio.ImageReader;
- import javax.imageio.stream.ImageInputStream;
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- public class OperateImage {
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- private String srcpath;
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- private String subpath;
- public void setSrcpath(String srcpath) {
- this.srcpath = srcpath;
- }
- public void setSubpath(String subpath) {
- this.subpath = subpath;
- }
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- private int x;
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- private int y;
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- private int width;
- private int height;
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- public OperateImage() {
- }
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- public OperateImage(int x, int y, int width, int height) {
- this.x = x;
- this.y = y;
- this.width = width;
- this.height = height;
- }
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- public void cut() throws IOException {
- FileInputStream is = null;
- ImageInputStream iis = null;
- try {
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- is = new FileInputStream(srcpath);
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- Iterator<ImageReader> it = ImageIO
- .getImageReadersByFormatName("jpg");
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- ImageReader reader = it.next();
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- iis = ImageIO.createImageInputStream(is);
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- reader.setInput(iis, true);
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- ImageReadParam param = reader.getDefaultReadParam();
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- Rectangle rect = new Rectangle(x, y, width, height);
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- param.setSourceRegion(rect);
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- BufferedImage bi = reader.read(0, param);
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- ImageIO.write(bi, "jpg", new File(subpath));
- } finally {
- if (is != null)
- is.close();
- if (iis != null)
- iis.close();
- }
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- }
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- public static void main(String[] args) throws Exception {
- String name = "d:\\1.jpg";
- OperateImage o = new OperateImage(20, 20, 100, 100);
- o.setSrcpath(name);
- o.setSubpath("D:\\11.jpg");
- o.cut();
- }
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- }
原文:http://www.oschina.net/code/snippet_857368_14826