在Mac上安装ImageMagick，通过im4java调用

在Mac上我是通过 Homebrew来进行ImageMagick的安装的

1、安装brew 

$ ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)”

2、安装ImageMagick 

$ brew install imagemagick

3、起初是想通过JMagick来实现的，但是考虑到调用Im4java的优势和在Mac下安装的繁琐，选择了Im4java。

“Advantages of im4java: the interface of the IM commandline is quite stable, so your java program (and the im4java-library) will work across many versions of IM. im4java also provides a better OO interface (the "language" of the IM-commandline with it's postfix-operation notation translates very easily into OO-notation). And most important: you can use im4java everywhere JMagick can't be used because of the JNI hazard (e.g. java application servers).”

4、实现

ProcessStarter.setGlobalSearchPath("/usr/local/bin/");
			IMOperation op = new IMOperation();
			op.addImage("/Users/liyinjun/Desktop/12.jpg");
			op.resize(100,200);
			op.addImage("/Users/liyinjun/Desktop/new_12.jpg");
			ConvertCmd convert = new ConvertCmd();
			try {
				convert.run(op);
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (IM4JavaException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

下面是转换的图片

这里是im4java 使用向导 http://im4java.sourceforge.net/docs/dev-guide.html