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
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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;
}
}
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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快网idc。
原文链接：https://blog.csdn.net/benweizhu/article/details/7307720
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