java实现图片水平和垂直翻转效果
最近在做小型游戏，遇到了要翻转图片的苦恼，经过我一下午的研究，终于发现了一种好用的方法。
部分代码来源于别人，我在这个基础上修改了下，变得更好用了，之前的别人Image输入都是BufferedImage，我改成了Image，也就是加了一个转换。
大家如果看不懂代码没关系，会用就行了，我会展示一下怎么用的。
ImageRotate类
packagemypackage;
importjavax.imageio.ImageIO;
importjava.awt.*;
importjava.awt.image.BufferedImage;
importjava.io.File;
/**
*AuthorMythos_Q
*
*Time2011-07-20
*
*Description图片旋转、翻转处理
*/
publicclassImgRotate
{
staticintUp_Down_Reverse=0;
staticintLeft_Right_Reverse=1;
/**
*旋转图片为指定角度
*
*@parambufferedimage
*目标图像
*@paramdegree
*旋转角度
*@return
*/
publicstaticBufferedImagerotateImage(finalBufferedImagebufferedimage,finalintdegree){
intw=bufferedimage.getWidth();
inth=bufferedimage.getHeight();
inttype=bufferedimage.getColorModel().getTransparency();
BufferedImageimg;
Graphics2Dgraphics2d;
(graphics2d=(img=newBufferedImage(h,w,type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2d.rotate(Math.toRadians(degree),w/2,h/2+(w>h?(w-h)/2:(h-w)/2));
graphics2d.drawImage(bufferedimage,0,0,null);
graphics2d.dispose();
returnimg;
}
/**
*旋转图片为指定角度
*
*@paramfile
*目标图像
*@paramdegree
*旋转角度(90,180,270)
*@return
*/
publicstaticFilerotateImage(Filefile,intdegree)throwsException{
if(degree==90)returnrotateImage90(file);
if(degree==180)returnrotateImage180(file);
if(degree==270)returnrotateImage270(file);
returnnull;
}
publicstaticImagerotateImage(ImageImage,intdegree)
{
if(degree==90)
returnrotateImage90(Image);
if(degree==180)
returnrotateImage180(Image);
if(degree==270)
returnrotateImage270(Image);
returnnull;
}
privatestaticImagerotateImage90(Imageimage)
{
BufferedImagebufferedimage=ImageToBufferedImage(image);
intw=bufferedimage.getWidth();
inth=bufferedimage.getHeight();
inttype=bufferedimage.getColorModel().getTransparency();
BufferedImageimg;
Graphics2Dgraphics2d;
(graphics2d=
(img=newBufferedImage(h,w,type)).createGraphics()
).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2d.rotate(Math.toRadians(270),w/2,h/2+(w-h)/2);
graphics2d.drawImage(bufferedimage,0,0,null);
graphics2d.dispose();
returnBufferedImageToImage(img);
}
//左转90度
publicstaticFilerotateImage90(Filefile)throwsException
{
BufferedImagebufferedimage=ImageIO.read(file);
intw=bufferedimage.getWidth();
inth=bufferedimage.getHeight();
inttype=bufferedimage.getColorModel().getTransparency();
BufferedImageimg;
Graphics2Dgraphics2d;
(graphics2d=
(img=newBufferedImage(h,w,type)).createGraphics()
).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2d.rotate(Math.toRadians(270),w/2,h/2+(w-h)/2);
graphics2d.drawImage(bufferedimage,0,0,null);
graphics2d.dispose();
ImageIO.write(img,"jpg",file);
returnfile;
}
//右转90度
publicstaticFilerotateImage270(Filefile)throwsException
{
BufferedImagebufferedimage=ImageIO.read(file);
intw=bufferedimage.getWidth();
inth=bufferedimage.getHeight();
inttype=bufferedimage.getColorModel().getTransparency();
BufferedImageimg;
Graphics2Dgraphics2d;
(graphics2d=(img=newBufferedImage(h,w,type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2d.rotate(Math.toRadians(90),w/2-(w-h)/2,h/2);
graphics2d.drawImage(bufferedimage,0,0,null);
graphics2d.dispose();
ImageIO.write(img,"jpg",file);
returnfile;
}
publicstaticImagerotateImage270(Imageimage)
{
BufferedImagebufferedimage=ImageToBufferedImage(image);
intw=bufferedimage.getWidth();
inth=bufferedimage.getHeight();
inttype=bufferedimage.getColorModel().getTransparency();
BufferedImageimg;
Graphics2Dgraphics2d;
(graphics2d=(img=newBufferedImage(h,w,type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2d.rotate(Math.toRadians(90),w/2-(w-h)/2,h/2);
graphics2d.drawImage(bufferedimage,0,0,null);
graphics2d.dispose();
returnBufferedImageToImage(img);
}
//对转
publicstaticFilerotateImage180(Filefile)throwsException
{
BufferedImagebufferedimage=ImageIO.read(file);
intw=bufferedimage.getWidth();
inth=bufferedimage.getHeight();
inttype=bufferedimage.getColorModel().getTransparency();
BufferedImageimg;
Graphics2Dgraphics2d;
(graphics2d=(img=newBufferedImage(w,h,type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2d.rotate(Math.toRadians(180),w/2,h/2);
graphics2d.drawImage(bufferedimage,0,0,null);
graphics2d.dispose();
ImageIO.write(img,"jpg",file);
returnfile;
}
publicstaticImagerotateImage180(Imageimage)
{
BufferedImagebufferedimage=ImageToBufferedImage(image);
intw=bufferedimage.getWidth();
inth=bufferedimage.getHeight();
inttype=bufferedimage.getColorModel().getTransparency();
BufferedImageimg;
Graphics2Dgraphics2d;
(graphics2d=(img=newBufferedImage(w,h,type)).createGraphics()).setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2d.rotate(Math.toRadians(180),w/2,h/2);
graphics2d.drawImage(bufferedimage,0,0,null);
graphics2d.dispose();
returnBufferedImageToImage(img);
}
/***
*图片镜像处理
*@paramfile
*@paramFX0为上下反转1为左右反转
*@return
*/
publicstaticvoidimageMisro(Filefile,intFX)
{
try
{
BufferedImagebufferedimage=ImageIO.read(file);
intw=bufferedimage.getWidth();
inth=bufferedimage.getHeight();
int[][]datas=newint[w][h];
for(inti=0;i
下面展示用法：
packagemypackage;
importjava.awt.*;
importjava.awt.image.*;
importjava.net.URL;
importjavax.swing.*;
publicclassTestextendsJPanel
{
JFrameframe;
Imageimage=newImageIcon("hand2.jpg").getImage();
publicvoidpaint(Graphicsg)
{
g.drawImage(image,0,0,null);//之前的图片
Imagem=ImgRotate.imageMisro(image,ImgRotate.Left_Right_Reverse);
g.drawImage(m,200,200,null);//水平翻转的图片
Imagemm=ImgRotate.rotateImage(m,90);//这里只能填90,180,270
g.drawImage(mm,250,0,null);
}
publicTest()
{
frame=newJFrame();
frame.add(this);
frame.setSize(500,500);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
publicstaticvoidmain(String[]args)
{
newTest();
}
}
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毛票票。