Linux图片处理工具-GraphicsMagick

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下载gm http://download.csdn.net/detail/madman_trio/9280499

下载jpeg和png http://download.csdn.net/detail/madman_trio/9280515

1. 下载 GraphicsMagick-1.3.20.tar.gz

2. 解压 tar -xvzf GraphicsMagick-1.3.20.tar.gz

3. cd GraphicsMagick-1.3.20

4. ./configure --without-prel --enable-shared --disable-openmp

5. make

6. make install

7. vi /etc/profile > IM4JAVA_TOOLPATH=/usr/local/bin/gm

8. ldconfig

遇到问题

gm: error while loading shared libraries: libGraphicsMagick.so.3: cannot open shared object file: No such file or directory

原因是没执行第8步

查看版本及安装信息 gm identify -version

-------------------支持PNG---------------------

1. 下载libpng-1.4.16.tar.gz

2. 解压

3. cd libpng-1.4.16

4. ./configure

5. make

6. make install

7. 重装GraphicsMagick，重复上面步骤 3 4 5 6 8

如果发现即便安装了libjpeg-6b，也不能支持JPEG那么你需要安装libjpeg-devel，【yum install libjpeg-turbo-devel】

######################################java demo###############################

import org.im4java.core.ConvertCmd;import org.im4java.core.IMOperation;public class ImageUtility {    public static void resize(String inFileName, String outFileName, String width, double quality) {        ConvertCmd cmd = new ConvertCmd(true);        IMOperation op = new IMOperation();        op.addImage(inFileName);        op.resize();        op.addRawArgs(width); //"300x"        op.quality(quality); //80.00        op.addImage(outFileName);        try {            cmd.run(op);        } catch (Exception e) {            e.printStackTrace();        }    }}

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