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; } } |
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服务器之家。
原文链接:https://blog.csdn.net/benweizhu/article/details/7307720