Fergu007's profile - activity

Hello to everyone, I'm an italian noob and I'm trying to understand something about OpenCV , for my master thesis. I'm sorry for my english but I'll try to explain myself as good as possible. However, this is my problem:

I downloaded the Tegra Android Development Pack here. After the installation I have Eclipse with OpenCV and I'm able to test OpenCV's samples on my Android phone. However, if I want to create a new project I have problems with Libraries. I googled a lot but I can't fix my problem. First of all I created a simple Java single-class project. The class is named "Start" and here is the code:

import org.opencv.core.Core;

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

public class Start {

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());
}

}

After that I "set up" the libraries: 1) open eclipse -> preferences -> Java -> Build path -> User Libraries 2) click "new" and type "OpenCV_2.4.5" 3) click "add external jars" 4) go to \sdk\java\bin\ and select my "opencv library 2.4.5.jar"

Then: 1) double clicked on my project and go to "properties" 2) go to "Java build path" 3) go to "Libraries" 4) go to "add Library" -> "user library" and select "OpenCV_2.4.5"

After these steps All the imports are ok and I don't have errors. However, when I run the application as "Java application", I have this error:

Exception in thread "main" java.lang.UnsatisfiedLinkError: no opencv_java245 in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1764)
at java.lang.Runtime.loadLibrary0(Runtime.java:823)
at java.lang.System.loadLibrary(System.java:1044)
at Start.main(Start.java:9)

On the internet I found this error and people tell to set the "native library location" to something like opencv\build\java\x86. However I don't have nothing under opencv\build and honestly, I don't know whether the real problem is this one.

Thank you for the help

no one can help me? Please

Hello to everyone, I'm an italian noob and I'm trying to understand something about OpenCV , for my master thesis. I'm sorry for my english but I'll try to explain myself as good as possible. However, this is my problem:

I'm using a Macbook Pro with OS X 10.9.2. I downloaded the Tegra Android Development Pack here. After the installation I have Eclipse with OpenCV and I'm able to test OpenCV's samples on my Android phone. However, if I want to create a new project I have problems with Libraries. I googled a lot but I can't fix my problem. First of all I created a simple Java single-class project. The class is named "Start" and here is the code:

import org.opencv.core.Core;

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

public class Start {

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());
}

}

After that I "set up" the libraries: 1) open eclipse -> preferences -> Java -> Build path -> User Libraries 2) click "new" and type "OpenCV_2.4.5" 3) click "add external jars" 4) go to \sdk\java\bin\ and select my "opencv library 2.4.5.jar"

Then: 1) double clicked on my project and go to "properties" 2) go to "Java build path" 3) go to "Libraries" 4) go to "add Library" -> "user library" and select "OpenCV_2.4.5"

After these steps All the imports are ok and I don't have errors. However, when I run the application as "Java application", I have this error:

Exception in thread "main" java.lang.UnsatisfiedLinkError: no opencv_java245 in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1764)
at java.lang.Runtime.loadLibrary0(Runtime.java:823)
at java.lang.System.loadLibrary(System.java:1044)
at Start.main(Start.java:9)

On the internet I found this error and people tell to set the "native library location" to something like opencv\build\java\x86. However I don't have nothing under opencv\build and honestly, I don't know whether the real problem is this one.

Thank you for the help