图片缩放的Java类
发布时间:2020-12-15 00:14:44 所属栏目:Java 来源:网络整理
导读:今天PHP站长网 52php.cn把收集自互联网的代码分享给大家,仅供参考。 import java.awt.Graphics2D;import java.awt.Image;import java.awt.image.BufferedImage;import java.awt.image.ColorModel;import com.jhlabs.imag
以下代码由PHP站长网 52php.cn收集自互联网 现在PHP站长网小编把它分享给大家,仅供参考 import java.awt.Graphics2D; import java.awt.Image; import java.awt.image.BufferedImage; import java.awt.image.ColorModel; import com.jhlabs.image.AbstractBufferedImageOp; /** * Scales an image using the area-averaging algorithm,which can't be done with AffineTransformOp. */ public class MyScaleFilter extends AbstractBufferedImageOp { private int width; private int height; /** * Construct a ScaleFilter. */ public MyScaleFilter() { this(32,32); } /** * Construct a ScaleFilter. * @param width the width to scale to * @param height the height to scale to */ public MyScaleFilter( int width,int height ) { this.width = width; this.height = height; } public BufferedImage filter( BufferedImage src,BufferedImage dst ) { if ( dst == null ) { ColorModel dstCM = src.getColorModel(); dst = new BufferedImage(dstCM,dstCM.createCompatibleWritableRaster( width,height ),dstCM.isAlphaPremultiplied(),null); } Image scaleImage = src.getScaledInstance( width,height,Image.SCALE_SMOOTH ); Graphics2D g = dst.createGraphics(); g.drawImage( scaleImage,width,null ); g.dispose(); return dst; } public String toString() { return "Distort/Scale"; } } 以上内容由PHP站长网【52php.cn】收集整理供大家参考研究 如果以上内容对您有帮助,欢迎收藏、点赞、推荐、分享。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |