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POOpenCV unable to load library for a dynamic web project
 

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  1. POOpenCV unable to load library for a dynamic web project
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    <p>I am preparing a java web project on face recognition.I am using java library of opencv 2.4.7. when I am calling FaceDetector class from a servlet, it gives error-</p> <blockquote> <p>java.lang.UnsatisfiedLinkError: no opencv_java247 in java.library.path java.lang.ClassLoader.loadLibrary(ClassLoader.java:1886) java.lang.Runtime.loadLibrary0(Runtime.java:849) java.lang.System.loadLibrary(System.java:1088) Models.NewFaceDetector.(NewFaceDetector.java:24) Servlets.helloServlet.doPost(helloServlet.java:108) javax.servlet.http.HttpServlet.service(HttpServlet.java:647) javax.servlet.http.HttpServlet.service(HttpServlet.java:728)</p> </blockquote> <p>This code is working perfectly in console java project. Servlet Code is-</p> <pre><code>protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { PrintWriter out=response.getWriter(); Part name=request.getPart("NameBox"); Part img=request.getPart("Img"); String filename=getFileName(img); InputStream is=img.getInputStream(); int i=is.available(); byte[] b=new byte[i]; is.read(b); String path="E:/temp/"+filename; FileOutputStream os=new FileOutputStream(path); os.write(b); os.close(); is.close(); FaceDetector fd=new FaceDetector(); fd.getFaces(path); } </code></pre> <p>and my face detector class is-</p> <pre><code>public class FaceDetector { static{ System.loadLibrary("opencv_java247"); } public List&lt;Mat&gt; getFaces(String url) throws MalformedURLException, IOException { List&lt;Mat&gt;faces=new ArrayList(); Mat image = Highgui.imread(url); //code... } </code></pre> <p>I gave the path to open cv dll- -Djava.library.path="C:\Users\vivek\Documents\NetBeansProjects\TrendFaceRecognizer\src\java\data"</p> <p>I don't know what's wrong I am doing.</p>
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