Rafalsonn's profile - activity

Hello, I've made an application which uses OpenCV, and now I want to run it on Tomcat. I'm now trying to set Tomcat to Work, this is the simple code to check is it working on tomcat:

String libopencv_java = "C:\\eclipse\\workspace\\tomcat_try\\opencv_java300.dll";
        System.load(libopencv_java); 
        LOG.debug("OpenCV Loaded");

        System.out.println("Welcome to OpenCV " + Core.VERSION);
        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());

When I'm executing the code on tomcat the result is:

Caused by: java.lang.UnsatisfiedLinkError: org.opencv.core.Mat.n_Mat(IIIDDDD)J at org.opencv.core.Mat.n_Mat(Native Method) at org.opencv.core.Mat.<init>(Mat.java:63)

Can somebody help me? I've added the opencv300.jar file to the build path,

You are great ! It worked, Thanks so much ! That's exactly what I've needed :) I was struggling with it 2 days

That would be a great solution, but I've got some weird errors when i try to convert that :

List<Point> lista = null;
Converters.Mat_to_vector_Point(aContours, lista);

The method Mat_to_vector_Point(Mat, List<point>) in the type Converters is not applicable for the arguments (List<matofpoint>, List<point>) Sorry If I make a noob mistakes, I'm a little new to OpenCV.

If it's possible I want to have a found points of contours in a list which can be later used to a program to draw those lines again, but for example like that Or just extract the contour points, I think it will be enough to do that.

With this function it's possible to convert the List of MatOfPoint to Vector? How to get the coordinates from Vector, or do something using Vectors?

What can I do with a List<matofpoint> to get a list for example with a coordinates of the contours?

So this is the photo I want to detect the lines from:

when I print the contour list it gives me a long text which i can't find out what to do with that like :

>  [Mat [ 2*1*CV_32SC2, isCont=true, isSubmat=false,nativeObj=0xd2095b0, dataAddr=0xd24d410 ],
>  Mat [ 3*1*CV_32SC2, isCont=true, isSubmat=false, nativeObj=0xd209620, dataAddr=0xd1c88e0 ]

Can I use it somehow or is there any other method to take the contours from the image and have the coordinates or something like that?

So I have an image of line, already processed through the filters like grayscale, canny edge detector and I'm doing a function findContours and a draw contours:

 Imgproc.findContours(mat, aContours,aHierarchy, Imgproc.RETR_LIST,Imgproc.CHAIN_APPROX_SIMPLE);` 
 Imgproc.drawContours(mat,aContours,-1, color,CONTOUR_LINE_THICKNESS);

and I want a coordinates of a found contours from the findcontours function. Could you help me?