Eclipse中安装Java Opencv

1、第一步，下载OpenCV3.3.1，下载地址为：

https://opencv.org/releases.html

Introduction to Java Development（Java的opencv开发文档）： https://docs.opencv.org/2.4.4-beta/doc/tutorials/introduction/desktop_java/java_dev_intro.html

Using OpenCV Java with Eclipse(Eclipse中配置opencv步骤）：

https://docs.opencv.org/3.0-beta/doc/tutorials/introduction/java_eclipse/java_eclipse.html

第二步：下载完毕之后，

（1）在Eclipse目录下（D:\Program Files\JavaProgramFiles\Eclipse4.7）创建一个文件夹OpenCV3.3.1

（2）从下载的opencv3.3.1点击打开，解压到目录下D:\Program Files\JavaProgramFiles\Eclipse4.7\OpenCV3.3.1,得如下：



第三步：在Eclipse中配置Opencv。具体步骤请参考opencv主页中的配置步骤：

https://docs.opencv.org/3.0-beta/doc/tutorials/introduction/java_eclipse/java_eclipse.html

第四步：测试。

打开Eclipse软件，file——new——java project——输入project name：testopencv3——next——Java Settings——选择Libraries——点击右边Add Library——选择User Library——next——选择OpenCV3.3.1——Finish——Finish。



点击src——右键New——新建一个Package包：testopencv；

再在testopencv目录下新建一个class类文件为：Hello.java

然后在文件中输入以下测试代码：

import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;

public class Hello
{
public static void main( String[] args )
{
System.loadLibrary( Core.NATIVE_LIBRARY_NAME );
Mat mat = Mat.eye( 3, 3, CvType.CV_8UC1 );
System.out.println( "mat = " + mat.dump() );
}
}

或

import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.Scalar;

public class Hello {

public static void main(String[] args) {
// TODO Auto-generated method stub
System.loadLibrary( Core.NATIVE_LIBRARY_NAME );
Mat mat = Mat.eye( 3, 3, CvType.CV_8UC1 );
System.out.println( "mat = " + mat.dump() );

Mat m = new Mat(5, 10, CvType.CV_8UC1, new Scalar(0));
System.out.println("OpenCV Mat: " + m);
Mat mr1 = m.row(1);
mr1.setTo(new Scalar(1));
Mat mc5 = m.col(5);
mc5.setTo(new Scalar(5));
System.out.println("OpenCV Mat data:\n" + m.dump());
}

}