Java实现图片旋转、指定图像大小和水平翻转

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。