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com.ttianjun.common.kit.image.ImageKit Maven / Gradle / Ivy
package com.ttianjun.common.kit.image;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;
public class ImageKit {
/*
* 根据尺寸图片居中裁剪
*/
public static void cutCenterImage(String src,String dest,int w,int h) throws IOException{
Iterator iterator = ImageIO.getImageReadersByFormatName("jpg");
ImageReader reader = iterator.next();
InputStream in=new FileInputStream(src);
ImageInputStream iis = ImageIO.createImageInputStream(in);
reader.setInput(iis, true);
ImageReadParam param = reader.getDefaultReadParam();
int imageIndex = 0;
int x = Math.abs((reader.getWidth(imageIndex)-w)/2);
int y = Math.abs((reader.getHeight(imageIndex)-h)/2);
Rectangle rect = new Rectangle(x, y, w, h);
param.setSourceRegion(rect);
BufferedImage bi = reader.read(0,param);
ImageIO.write(bi, "jpg", new File(dest));
}
/*
* 图片裁剪二分之一
*/
public static void cutHalfImage(String src,String dest) throws IOException{
Iterator iterator = ImageIO.getImageReadersByFormatName("jpg");
ImageReader reader = iterator.next();
InputStream in=new FileInputStream(src);
ImageInputStream iis = ImageIO.createImageInputStream(in);
reader.setInput(iis, true);
ImageReadParam param = reader.getDefaultReadParam();
int imageIndex = 0;
int width = reader.getWidth(imageIndex)/2;
int height = reader.getHeight(imageIndex)/2;
Rectangle rect = new Rectangle(width/2, height/2, width, height);
param.setSourceRegion(rect);
BufferedImage bi = reader.read(0,param);
ImageIO.write(bi, "jpg", new File(dest));
}
/*
* 图片裁剪通用接口
*/
public static void cutImage(String src,String dest,int x,int y,int w,int h) throws IOException{
Iterator iterator = ImageIO.getImageReadersByFormatName("jpg");
ImageReader reader = iterator.next();
InputStream in=new FileInputStream(src);
ImageInputStream iis = ImageIO.createImageInputStream(in);
reader.setInput(iis, true);
ImageReadParam param = reader.getDefaultReadParam();
Rectangle rect = new Rectangle(x, y, w,h);
param.setSourceRegion(rect);
BufferedImage bi = reader.read(0,param);
ImageIO.write(bi, "jpg", new File(dest));
}
/*
* 图片缩放
*/
public static void zoomImage(String src,String dest,int w,int h) throws Exception {
double wr=0,hr=0;
File srcFile = new File(src);
File destFile = new File(dest);
BufferedImage bufImg = ImageIO.read(srcFile);
Image Itemp = bufImg.getScaledInstance(w, h, Image.SCALE_SMOOTH);
wr=w*1.0/bufImg.getWidth();
hr=h*1.0 / bufImg.getHeight();
AffineTransformOp ato = new AffineTransformOp(AffineTransform.getScaleInstance(wr, hr), null);
Itemp = ato.filter(bufImg, null);
try {
ImageIO.write((BufferedImage) Itemp,dest.substring(dest.lastIndexOf(".")+1), destFile);
} catch (Exception ex) {
ex.printStackTrace();
}
}
/*
* 图片等比缩放 以最小边为准
*/
public static void zoomImageDb(String src,String dest,int w,int h) throws Exception {
double wr=0,hr=0;
File srcFile = new File(src);
File destFile = new File(dest);
BufferedImage bufImg = ImageIO.read(srcFile);
Image Itemp = bufImg.getScaledInstance(w, h, Image.SCALE_SMOOTH);
wr=w*1.0/bufImg.getWidth();
hr=h*1.0 / bufImg.getHeight();
double scale = wr>hr?hr:wr;
AffineTransformOp ato = new AffineTransformOp(AffineTransform.getScaleInstance(scale, scale), null);
Itemp = ato.filter(bufImg, null);
try {
ImageIO.write((BufferedImage) Itemp,dest.substring(dest.lastIndexOf(".")+1), destFile);
} catch (Exception ex) {
ex.printStackTrace();
}
}
/*
* 图片等比缩放 以最大边为准
*/
public static void zoomImageDb2(String src,String dest,int w,int h) throws Exception {
double wr=0,hr=0;
File srcFile = new File(src);
File destFile = new File(dest);
BufferedImage bufImg = ImageIO.read(srcFile);
Image itemp = bufImg.getScaledInstance(w, h, Image.SCALE_SMOOTH);
wr=w*1.0/bufImg.getWidth();
hr=h*1.0 / bufImg.getHeight();
double scale = wr>hr?wr:hr;
AffineTransformOp ato = new AffineTransformOp(AffineTransform.getScaleInstance(scale, scale), null);
itemp = ato.filter(bufImg, null);
try {
ImageIO.write((BufferedImage) itemp,dest.substring(dest.lastIndexOf(".")+1), destFile);
} catch (Exception ex) {
ex.printStackTrace();
}
}
public static void watermark(String sourceFileName,File extendFile) throws IOException{
File sourceFile = new File(sourceFileName);
if(!isPic(sourceFile))return;
Image img = ImageIO.read(sourceFile);
BufferedImage doPic = ImageIO.read(extendFile);
int width = img.getWidth(null);
int height = img.getHeight(null);
int extWidth = doPic.getWidth(null);
int extHeight = doPic.getHeight(null);
//新的image流
BufferedImage image = new BufferedImage(width, height+extHeight, BufferedImage.TYPE_INT_RGB);
Graphics2D g = image.createGraphics();// draw source image
g.setColor(Color.WHITE);//设置笔刷白色
g.fillRect(0,0,width,height+extHeight);//填充整个屏幕
g.drawImage(img, 0, 0, width, height, null);
g.drawImage(doPic, 0, height, extWidth, extHeight, null);
g.dispose();
FileOutputStream os = new FileOutputStream(sourceFile);
ImageIO.write(image, "jpg", os);
}
public static boolean isPic(File file) {
String imgeArray[] = { "bmp", "dib", "gif", "jfif", "jpe", "jpeg", "jpg", "png", "tif", "tiff", "ico" };
String fileName = file.getName();
fileName = fileName.substring(fileName.lastIndexOf(".") + 1);
for (String suffix : imgeArray) {
if (fileName.equals(suffix)) {
return true;
}
}
return false;
}
public static void main(String[] args) throws Exception {
final int width=200;
final int height = 150;
final int logoHeight = 50;
String src = "C:\\Users\\jun\\Pictures\\test\\1.jpg";
String dest = "C:\\Users\\jun\\Pictures\\test\\2.jpg";
String logo = "C:\\Users\\jun\\Pictures\\test\\logo.jpg";
File logoFile = new File(logo);
ImageKit.zoomImage(logoFile.getCanonicalPath(), logoFile.getCanonicalPath(), width, logoHeight);
ImageKit.zoomImageDb2(src, dest,width,height);
ImageKit.cutCenterImage(dest, dest,width,height);
ImageKit.watermark(dest,logoFile);
}
}
