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
packagecom.zeph.j2se.image;
importjava.awt.Graphics2D;
importjava.awt.RenderingHints;
importjava.awt.image.BufferedImage;
publicclassImageOperate{
/**
*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(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();
returnimg;
}
/**
*变更图像为指定大小
*
*@parambufferedimage
*目标图像
*@paramw
*宽
*@paramh
*高
*@return
*/
publicstaticBufferedImageresizeImage(finalBufferedImagebufferedimage,
finalintw,finalinth){
inttype=bufferedimage.getColorModel().getTransparency();
BufferedImageimg;
Graphics2Dgraphics2d;
(graphics2d=(img=newBufferedImage(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();
returnimg;
}
/**
*水平翻转图像
*
*@parambufferedimage
*目标图像
*@return
*/
publicstaticBufferedImageflipImage(finalBufferedImagebufferedimage){
intw=bufferedimage.getWidth();
inth=bufferedimage.getHeight();
BufferedImageimg;
Graphics2Dgraphics2d;
(graphics2d=(img=newBufferedImage(w,h,bufferedimage
.getColorModel().getTransparency())).createGraphics())
.drawImage(bufferedimage,0,0,w,h,w,0,0,h,null);
graphics2d.dispose();
returnimg;
}
}
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。