Created
November 16, 2012 14:47
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Code for Face Detection in Javacv using haar classifier.
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| import com.googlecode.javacv.cpp.opencv_core.IplImage; | |
| import static com.googlecode.javacv.cpp.opencv_core.*; | |
| import static com.googlecode.javacv.cpp.opencv_highgui.*; | |
| import static com.googlecode.javacv.cpp.opencv_objdetect.*; | |
| public class FaceDetection{ | |
| public static final String XML_FILE = | |
| "resources/haarcascade_frontalface_default.xml"; | |
| public static void main(String[] args){ | |
| IplImage img = cvLoadImage("resources/lena.jpg"); | |
| detect(img); | |
| } | |
| public static void detect(IplImage src){ | |
| CvHaarClassifierCascade cascade = new | |
| CvHaarClassifierCascade(cvLoad(XML_FILE)); | |
| CvMemStorage storage = CvMemStorage.create(); | |
| CvSeq sign = cvHaarDetectObjects( | |
| src, | |
| cascade, | |
| storage, | |
| 1.5, | |
| 3, | |
| CV_HAAR_DO_CANNY_PRUNING); | |
| cvClearMemStorage(storage); | |
| int total_Faces = sign.total(); | |
| for(int i = 0; i < total_Faces; i++){ | |
| CvRect r = new CvRect(cvGetSeqElem(sign, i)); | |
| cvRectangle ( | |
| src, | |
| cvPoint(r.x(), r.y()), | |
| cvPoint(r.width() + r.x(), r.height() + r.y()), | |
| CvScalar.RED, | |
| 2, | |
| CV_AA, | |
| 0); | |
| } | |
| cvShowImage("Result", src); | |
| cvWaitKey(0); | |
| } | |
| } |
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Dear Nikhil,
Thanks for sharing.
I am getting the following excetpion while executing the code downloaded from your repository on GitHub (https://github.com/nikhil9/FaceDetection)
OpenJDK 64-Bit Server VM warning: You have loaded library /usr/local/lib/libopencv_core.so.3.0.0 which might have disabled stack guard. The VM will try to fix the stack guard now.
It's highly recommended that you fix the library with 'execstack -c ', or link it with '-z noexecstack'.
Exception in thread "main" java.lang.UnsatisfiedLinkError: /tmp/javacpp5998446228712/libjniopencv_core.so: libopencv_core.so.2.4: cannot open shared object file: No such file or directory
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1851)
at java.lang.Runtime.load0(Runtime.java:795)
at java.lang.System.load(System.java:1062)
at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:418)
at com.googlecode.javacpp.Loader.load(Loader.java:368)
at com.googlecode.javacpp.Loader.load(Loader.java:315)
at com.googlecode.javacv.cpp.opencv_core.(opencv_core.java:131)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)
at com.googlecode.javacpp.Loader.load(Loader.java:334)
at com.googlecode.javacv.cpp.opencv_imgproc.(opencv_imgproc.java:96)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)
at com.googlecode.javacpp.Loader.load(Loader.java:334)
at com.googlecode.javacv.cpp.opencv_highgui.(opencv_highgui.java:85)
at FaceDetection.main(FaceDetection.java:15)
From where can I download the shared library?
Which version of javac are you using?
Regards,