Java实现图片旋转、指定图像大小和水平翻转

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.toRadiahttp://ns(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 imgzzXOyi;

}

}

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