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我们。
时间： -02-09
