1、简介
ImageMagick是一套功能强大、稳定而且开源的工具集和开发包,可以用来读、写和处理超过200种基本格式
的图片文件,包括PNG,JPEG,GIF,HEIC,TIFF,DPX,EXR,WebP,Postscript,PDF和SVG等格式。利用
ImageMagick,可以根据web应用程序的需要动态生成图片, 还可以对一个(或一组)图片进行改变大小、
旋转、锐化、减色或增加特效等操作,并将操作的结果以相同格式或其它格式保存,对图片的操作,
既可以通过命令行进行,也可以通过C/C++、Perl、Java、PHP、Python或Ruby编程来完成。
Im4java是ImageMagick服务开放的的第二个java接口。
2、pom依赖引入
<dependency>
<groupId>org.im4java</groupId>
<artifactId>im4java</artifactId>
<version>1.4.0</version>
</dependency>
3、代码
package com.yunhe.zzedu.web.controller.utils;
import org.im4java.core.*;
import org.im4java.process.ArrayListOutputConsumer;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
/**
* @description:
* @author: bgq
* @create: 2022/11/22 11:21
*/
public class Im4JavaUtils {
//代码中ImageMagick安装包的地址
private static final String IMAGE_MAGICK_PATH = "D:/java/ImageMagick-7.1.0-Q16";
//源图片目录
public static final String SRC_IMAGE_PATH = "D:\\static\\image";
//新图片目录
public static final String NEW_IMAGE_PATH = "D:\\static\\image\\new\\";
//水印图片地址
public static final String APPEND_IMAGE_PATH = "D:\\static\\image\\timg.png";
public static void main(String[] args) {
//旋转图片
//Im4JavaUtils.roateImage(SRC_IMAGE_PATH + "1.jpg", NEW_IMAGE_PATH + "1.jpg", 90.0);
//裁剪图片
//Im4JavaUtils.cutImage(SRC_IMAGE_PATH + "1.jpg", NEW_IMAGE_PATH + "1.jpg", 100, 100, 100, 100);
//缩放图片
//Im4JavaUtils.zoomImage(SRC_IMAGE_PATH + "1.jpg", NEW_IMAGE_PATH + "1.jpg", 400, 270);
//压缩图片
//Im4JavaUtils.compressImage(SRC_IMAGE_PATH + "1.jpg", NEW_IMAGE_PATH + "1.jpg", 50.0);
//加文字水印
//Im4JavaUtils.textImage(SRC_IMAGE_PATH + "1.jpg", NEW_IMAGE_PATH + "1.jpg", "TEST");
//加图片水印
Im4JavaUtils.compositeImage(SRC_IMAGE_PATH + "1.jpg", NEW_IMAGE_PATH + "1.jpg", APPEND_IMAGE_PATH, 50);
System.out.println("======获取图片信息=====");
Map<String, String> imageInfo = Im4JavaUtils.getImageInfo(SRC_IMAGE_PATH + "1.jpg");
for (String key : imageInfo.keySet()) {
System.out.println(key + " : " + imageInfo.get(key));
}
System.out.println("======获取图片信息=====");
}
enum CommandType {
/**
* 转换处理
*/
convert("转换处理"), composite("图片合成"), identify("图片信息"),
;
private String name;
CommandType(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
private static ImageCommand getImageCommand(CommandType command) {
ImageCommand cmd = null;
switch (command) {
case convert:
cmd = new ConvertCmd();
break;
case composite:
cmd = new CompositeCmd();
break;
case identify:
cmd = new IdentifyCmd();
break;
default:
break;
}
if (cmd != null) {
cmd.setSearchPath(IMAGE_MAGICK_PATH);
}
return cmd;
}
/**
* 旋转图片
*
* @param srcImagePath 原图片地址
* @param newImagePath 新图片地址
* @param degree 旋转角度
* @return
*/
public static boolean roateImage(String srcImagePath, String newImagePath, Double degree) {
try {
IMOperation op = new IMOperation();
op.addImage(srcImagePath);
op.rotate(degree);
op.addImage(newImagePath);
ImageCommand convert = getImageCommand(CommandType.convert);
convert.run(op);
System.out.println("旋转图片成功");
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* 裁剪图片
*
* @param srcImagePath 原图片地址
* @param newImagePath 新图片地址
* @param width 裁剪后的宽度
* @param height 裁剪后的高度
* @param x 起始横坐标
* @param y 起始纵坐标
* @return
*/
public static boolean cutImage(String srcImagePath, String newImagePath, Integer width, Integer height, Integer x, Integer y) {
try {
IMOperation op = new IMOperation();
op.addImage(srcImagePath);
op.crop(width, height, x, y);
op.addImage(newImagePath);
ImageCommand convert = getImageCommand(CommandType.convert);
convert.run(op);
System.out.println("裁剪图片成功");
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* 缩放图片
*
* @param srcImagePath 原图片地址
* @param newImagePath 新图片地址
* @param width 缩放后的宽度
* @param height 缩放后的高度
* 高度和宽度需符合图片比例,不符合的情况下,以其中最小值为准。
* @return
*/
public static boolean zoomImage(String srcImagePath, String newImagePath, Integer width, Integer height) {
try {
IMOperation op = new IMOperation();
op.addImage(srcImagePath);
op.resize(width, height);
op.addImage(newImagePath);
ImageCommand convert = getImageCommand(CommandType.convert);
convert.run(op);
System.out.println("缩放图片成功");
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* 压缩图片
*
* @param srcImagePath 原图片地址
* @param newImagePath 新图片地址
* @param quality 压缩比例
* 图片压缩比,有效值范围是0.0-100.0,数值越大,缩略图越清晰。
* @return
*/
public static boolean compressImage(String srcImagePath, String newImagePath, Double quality) {
try {
IMOperation op = new IMOperation();
op.addImage(srcImagePath);
op.quality(quality);
op.addImage(newImagePath);
ImageCommand convert = getImageCommand(CommandType.convert);
convert.run(op);
System.out.println("压缩图片成功");
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* 文字水印
*
* @param srcImagePath 原图片地址
* @param newImagePath 新图片地址
* @param content 水印文字,不支持汉字
* @return
*/
public static boolean textImage(String srcImagePath, String newImagePath, String content) {
try {
IMOperation op = new IMOperation();
op.addImage(srcImagePath);
//右下角
op.font("ArialBold").gravity("southeast").pointsize(60).fill("#F2F2F2").draw("text 10,10 " + content);
op.addImage(newImagePath);
ImageCommand convert = getImageCommand(CommandType.convert);
convert.run(op);
System.out.println("添加文字水印成功");
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* 图片水印
*
* @param srcImagePath 原图片地址
* @param newImagePath 新图片地址
* @param appendImagePath 水印图片地址
* @param dissolve 水印透明度,0-100
* @return
*/
public static boolean compositeImage(String srcImagePath, String newImagePath, String appendImagePath, Integer dissolve) {
try {
//原图片信息
BufferedImage bufferedImage = ImageIO.read(new File(srcImagePath));
int w = bufferedImage.getWidth();
int h = bufferedImage.getHeight();
//水印图片信息
Image image = ImageIO.read(new File(appendImagePath));
int w1 = image.getWidth(null);
int h1 = image.getHeight(null);
IMOperation op = new IMOperation();
op.geometry(w1, h1, w - w1 - 10, h - h1 - 10);
op.dissolve(dissolve);
op.addImage(appendImagePath);
op.addImage(srcImagePath);
op.addImage(newImagePath);
ImageCommand composite = getImageCommand(CommandType.composite);
composite.run(op);
System.out.println("添加图片水印成功");
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* 获取图片信息
*
* @param imagePath 图片地址
* @return
*/
public static Map<String, String> getImageInfo(String imagePath) {
Map<String, String> imageInfo = new HashMap<>();
try {
IMOperation op = new IMOperation();
op.format("%w,%h,%d/%f,%Q,%b,%e");
op.addImage();
//注意这里,用的是identify
ImageCommand identifyCmd = getImageCommand(CommandType.identify);
ArrayListOutputConsumer output = new ArrayListOutputConsumer();
identifyCmd.setOutputConsumer(output);
identifyCmd.run(op, imagePath);
ArrayList<String> cmdOutput = output.getOutput();
String[] result = cmdOutput.get(0).split(",");
if (result.length == 6) {
imageInfo.put("宽度", result[0]);
imageInfo.put("高度", result[1]);
imageInfo.put("路径", result[2]);
imageInfo.put("质量", result[3]);
imageInfo.put("大小", result[4]);
imageInfo.put("格式", result[5]);
}
} catch (Exception e) {
e.printStackTrace();
}
return imageInfo;
}
}