GraphicsMagick +Im4java工具类

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1、安装GraphicsMagick

2、项目引入Im4java的jar

<dependency>

<groupId>org.im4java</groupId>

<artifactId>im4java</artifactId>

<version>1.4.0</version>

</dependency>

代码样例：

/**

* 旋转

* @throws IOException

* @throws InterruptedException

* @throws IM4JavaException

*/

public static void rotate() throws IOException, InterruptedException, IM4JavaException{

IMOperation op = new IMOperation();

op.addImage("d:\\a.jpg");

op.rotate(45d);

op.addImage("d:\\efg.jpg");

ConvertCmd cmd = new ConvertCmd(true);

cmd.setSearchPath("D:\\GraphicsMagick-1.3.18-Q8");

cmd.run(op);

}

/**

* 裁剪图片

* @throws IOException

* @throws InterruptedException

* @throws IM4JavaException

*/

public static void cutPic() throws IOException, InterruptedException, IM4JavaException{

IMOperation op = new IMOperation();

op.addImage("d:\\a.jpg");

op.crop(200, 200, 20, 20);

op.addImage("d:\\efg.jpg");

ConvertCmd cmd = new ConvertCmd(true);

cmd.setSearchPath("D:\\GraphicsMagick-1.3.18-Q8");

cmd.run(op);

}

/**

* 获取图片信息

* @throws IOException

* @throws InterruptedException

* @throws IM4JavaException

*/

public static void getInfo() throws IOException, InterruptedException, IM4JavaException{

IMOperation op = new IMOperation();

op.format("%w,%h,%d,%f,%b");

op.addImage("d://test.jpg");

IdentifyCmd cmd = new IdentifyCmd(true);

cmd.setSearchPath("D:\\GraphicsMagick-1.3.18-Q8");

ArrayListOutputConsumer output = new ArrayListOutputConsumer();

cmd.setOutputConsumer(output);

cmd.run(op);

ArrayList<String> cmdOutput = output.getOutput();

if (cmdOutput.size() != 1) return;

String line = cmdOutput.get(0);

System.out.println(line);

}

/**

* 等比例缩放

* @throws IOException

* @throws InterruptedException

* @throws IM4JavaException

*/

public static void equalScaling() throws IOException, InterruptedException, IM4JavaException{

GMOperation op = new GMOperation();

op.resize(5000);

op.addImage("d://a.jpg");

op.addImage("d://efgg.jpg");

ConvertCmd cmd = new ConvertCmd(true);

cmd.setSearchPath("D:\\GraphicsMagick-1.3.18-Q8");

cmd.run(op);

}

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