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 更新时间:2019年02月10日 08:43:56   作者:benw1988   我要评论

这篇文章主要为大家详细介绍了Java实现图像旋转,指定图像大小,水平翻转图像,具有一定的参考价值,感兴趣的小伙伴们可以参考一下

本文实例为大家分享了Java实现图片旋转、指定图像大小、水平翻转,供大家参考,具体内容如下

package com.zeph.j2se.image;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
public class ImageOperate {
 /**
 * 旋转图片为指定角度
 * 
 * @param bufferedimage
 *   目标图像
 * @param degree
 *   旋转角度
 * @return
 */
 public static BufferedImage rotateImage(final BufferedImage bufferedimage,
 final int degree) {
 int w = bufferedimage.getWidth();
 int h = bufferedimage.getHeight();
 int type = bufferedimage.getColorModel().getTransparency();
 BufferedImage img;
 Graphics2D graphics2d;
 (graphics2d = (img = new BufferedImage(w, h, type)).createGraphics())
 .setRenderingHint(RenderingHints.KEY_INTERPOLATION,
  RenderingHints.VALUE_INTERPOLATION_BILINEAR);
 graphics2d.rotate(Math.toRadians(degree), w / 2, h / 2);
 graphics2d.drawImage(bufferedimage, 0, 0, null);
 graphics2d.dispose();
 return img;
 }
 /**
 * 变更图像为指定大小
 * 
 * @param bufferedimage
 *   目标图像
 * @param w
 *   宽
 * @param h
 *   高
 * @return
 */
 public static BufferedImage resizeImage(final BufferedImage bufferedimage,
 final int w, final int h) {
 int type = bufferedimage.getColorModel().getTransparency();
 BufferedImage img;
 Graphics2D graphics2d;
 (graphics2d = (img = new BufferedImage(w, h, type)).createGraphics())
 .setRenderingHint(RenderingHints.KEY_INTERPOLATION,
  RenderingHints.VALUE_INTERPOLATION_BILINEAR);
 graphics2d.drawImage(bufferedimage, 0, 0, w, h, 0, 0,
 bufferedimage.getWidth(), bufferedimage.getHeight(), null);
 graphics2d.dispose();
 return img;
 }
 /**
 * 水平翻转图像
 * 
 * @param bufferedimage
 *   目标图像
 * @return
 */
 public static BufferedImage flipImage(final BufferedImage bufferedimage) {
 int w = bufferedimage.getWidth();
 int h = bufferedimage.getHeight();
 BufferedImage img;
 Graphics2D graphics2d;
 (graphics2d = (img = new BufferedImage(w, h, bufferedimage
 .getColorModel().getTransparency())).createGraphics())
 .drawImage(bufferedimage, 0, 0, w, h, w, 0, 0, h, null);
 graphics2d.dispose();
 return img;
 }
}

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

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