IP camera with OpenCv in Java -



IP camera with OpenCv in Java -

i trying , display video stream ip camera. found sample code here:http://answers.opencv.org/question/24012/reading-video-stream-from-ip-camera-in-opencv-java/

but not working me. code works when utilize internal webcam, when switch photographic camera ip, not work. have no thought why. can please help me? here code:

import java.awt.borderlayout; import java.awt.image; import java.awt.image.bufferedimage; import java.awt.image.databufferbyte; import java.io.file; import java.io.ioexception; import javax.imageio.imageio; import javax.swing.imageicon; import javax.swing.jframe; import javax.swing.jlabel; import javax.swing.jpanel; import org.opencv.core.core; import org.opencv.core.cvtype; import org.opencv.core.mat; import org.opencv.highgui.videocapture; import org.opencv.imgproc.imgproc; public class opencvtest { public opencvtest() { // todo auto-generated constructor stub } /** * @param args * @throws ioexception */ public static void main(string[] args) throws ioexception { system.loadlibrary(core.native_library_name); //videocapture photographic camera = new videocapture("http://192.168.0.7/image.jpg"); videocapture photographic camera = new videocapture(0); if (camera.isopened()) { system.out.println("video captured"); } else { system.out.println(""); } videocamera cam = new videocamera(camera); jframe frame = new jframe(); frame.setdefaultcloseoperation(jframe.exit_on_close); frame.add(cam); frame.setsize(800,800); frame.setvisible(true); while(camera.isopened()) { cam.repaint(); } } } import java.awt.graphics; import java.awt.point; import java.awt.image.bufferedimage; import java.awt.image.databufferbyte; import java.util.arraylist; import javax.swing.jframe; import javax.swing.jpanel; import org.opencv.core.core; import org.opencv.core.mat; import org.opencv.core.matofrect; import org.opencv.core.rect; import org.opencv.core.scalar; import org.opencv.highgui.videocapture; import org.opencv.imgproc.imgproc; import org.opencv.objdetect.cascadeclassifier; import org.opencv.core.*; @suppresswarnings("serial") public class videocamera extends jpanel { videocapture camera; public videocamera(videocapture cam) { photographic camera = cam; } /** * @param args */ public static void main(string[] args) { // todo auto-generated method stub } public bufferedimage mat2bufferedimage(mat m) { int type = bufferedimage.type_byte_gray; if (m.channels() > 1) { type = bufferedimage.type_3byte_bgr; } int buffersize = m.channels() * m.cols() * m.rows(); byte[] b = new byte[buffersize]; m.get(0, 0, b); // pixels bufferedimage img = new bufferedimage(m.cols(), m.rows(), type); final byte[] targetpixels = ((databufferbyte) img.getraster().getdatabuffer()).getdata(); system.arraycopy(b, 0, targetpixels, 0, b.length); homecoming img; } public void paintcomponent(graphics g) { super.paintcomponent(g); mat mat = new mat(); if( camera.read(mat)) { system.out.print("image"); } bufferedimage image = mat2bufferedimage(mat); //mat grayness = turngray(mat); //matofrect objects = new matofrect(); //cascadeclassifier cas = new cascadeclassifier(); //cas.detectmultiscale(gray,objects); //mat thresh = threash( gray); //bufferedimage image = mat2bufferedimage(thresh); g.drawimage(image,10,10,image.getwidth(),image.getheight(), null); } public mat turngray( mat img) { mat mat1 = new mat(); imgproc.cvtcolor(img, mat1, imgproc.color_rgb2gray); homecoming mat1; } public mat threash(mat img) { mat threshed = new mat(); int sensitivity_value = 100; imgproc.threshold(img, threshed, sensitivity_value,255,imgproc.thresh_binary); homecoming threshed; } }

thank help. able utilize said find proper ip address (http://192.168.0.6/video.cgi) (yes, know 7 became 6, different camera) video in browser. still next error.

exception in thread "awt-eventqueue-0" java.lang.illegalargumentexception: width (0) , height (0) must > 0 @ java.awt.image.samplemodel.<init>(unknown source) @ java.awt.image.componentsamplemodel.<init>(unknown source) @ java.awt.image.pixelinterleavedsamplemodel.<init>(unknown source) @ java.awt.image.raster.createinterleavedraster(unknown source) @ java.awt.image.raster.createinterleavedraster(unknown source) @ java.awt.image.raster.createinterleavedraster(unknown source) @ java.awt.image.componentcolormodel.createcompatiblewritableraster(unknown source) @ java.awt.image.bufferedimage.<init>(unknown source) @ videocamera.mat2bufferedimage(videocamera.java:54) @ videocamera.paintcomponent(videocamera.java:74) @ javax.swing.jcomponent.paint(unknown source) @ javax.swing.jcomponent.paintchildren(unknown source) @ javax.swing.jcomponent.paint(unknown source) @ javax.swing.jcomponent.paintchildren(unknown source) @ javax.swing.jcomponent.paint(unknown source) @ javax.swing.jlayeredpane.paint(unknown source) @ javax.swing.jcomponent.paintchildren(unknown source) @ javax.swing.jcomponent.painttooffscreen(unknown source) @ javax.swing.bufferstrategypaintmanager.paint(unknown source) @ javax.swing.repaintmanager.paint(unknown source) @ javax.swing.jcomponent.paint(unknown source) @ java.awt.graphicscallback$paintcallback.run(unknown source) @ sun.awt.sungraphicscallback.runonecomponent(unknown source) @ sun.awt.sungraphicscallback.runcomponents(unknown source) @ java.awt.container.paint(unknown source) @ java.awt.window.paint(unknown source) @ javax.swing.repaintmanager$3.run(unknown source) @ javax.swing.repaintmanager$3.run(unknown source) @ java.security.accesscontroller.doprivileged(native method) @ java.security.protectiondomain$1.dointersectionprivilege(unknown source) @ javax.swing.repaintmanager.paintdirtyregions(unknown source) @ javax.swing.repaintmanager.paintdirtyregions(unknown source) @ javax.swing.repaintmanager.prepaintdirtyregions(unknown source) @ javax.swing.repaintmanager.access$1100(unknown source) @ javax.swing.repaintmanager$processingrunnable.run(unknown source) @ java.awt.event.invocationevent.dispatch(unknown source) @ java.awt.eventqueue.dispatcheventimpl(unknown source) @ java.awt.eventqueue.access$200(unknown source) @ java.awt.eventqueue$3.run(unknown source) @ java.awt.eventqueue$3.run(unknown source) @ java.security.accesscontroller.doprivileged(native method) @ java.security.protectiondomain$1.dointersectionprivilege(unknown source) @ java.awt.eventqueue.dispatchevent(unknown source) @ java.awt.eventdispatchthread.pumponeeventforfilters(unknown source) @ java.awt.eventdispatchthread.pumpeventsforfilter(unknown source) @ java.awt.eventdispatchthread.pumpeventsforhierarchy(unknown source) @ java.awt.eventdispatchthread.pumpevents(unknown source) @ java.awt.eventdispatchthread.pumpevents(unknown source) @ java.awt.eventdispatchthread.run(unknown source)

i think because videocapture not grabbing frame correctly.

this photographic camera trying utilize http://www.trendnet.com/products/proddetail.asp?prod=150_tv-ip100w-n

.jpg refers single image file, while .mjpg gives access video stream. it's of import define ip , port used connect.

depending on device have , settings defined in web interface of camera, url going different:

videocapture photographic camera = new videocapture("http://192.168.0.7:8080/?dummy=param.mjpg"); videocapture photographic camera = new videocapture("http://192.168.0.7:8080/mjpeg.cgi"); videocapture photographic camera = new videocapture("http://192.168.0.7:8080/mjpg/mjpeg.cgi"); videocapture photographic camera = new videocapture("http://192.168.0.7:8080/video.mjpeg"); videocapture photographic camera = new videocapture("http://192.168.0.7:8080/video.cgi?.mjpg");

when access valid url via browser should display video stream. 1 time find address works, pass videocapture constructor. in examples showed how access stream via http, rtsp protocol supported.

java opencv camera ip jpanel

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