GMU:Tutorials/Performance Platform/Capture with Processing: Difference between revisions

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Revision as of 16:50, 31 July 2016

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→‎Algorithm of calculation

Kanfeng

330

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 '''Code in Processing'''
 I am using Blobdetection library written by Mario Klingemann <http://incubator.quasimondo.com> in Processing Opencv to help me with the code part. So that I can get the data of blobs, and therefore to count the amounts of blobs to get the amounts of visitors in the platform.
+'''And here is the github link for my full code:''' <https://github.com/ConnorFk/DBL_VisitorsCount>
+<source lang="Java" line start= "17">
+  printArray(Capture.list());//to get the webcam source list
+  //cam = new Capture(this, 640, 480);  //default webcam in your laptop
+  cam = new Capture(this, 640, 480, Capture.list()[2]);//Logitech C270 Webcam
+  // Comment the following line if you use Processing 1.5
+  cam.start();
+</source>
 [[File:codeProcessing1.jpg]]
+<source lang="Java" line start= "32">
+// ==================================================
+// captureEvent()
+// ==================================================
+void captureEvent(Capture cam)
+{
+	cam.read(); // to start the webcam
+	newFrame = true; // keep grabbing the new frames
+}
+void draw()
+{
+	if (newFrame)
+	{
+		newFrame=false;
+		image(cam,0,0,width,height);
+		img.copy(cam, 0, 0, cam.width, cam.height,
+, 0, img.width, img.height);
+		fastblur(img, 2);
+		theBlobDetection.computeBlobs(img.pixels);
+		drawBlobsAndEdges(true,true);
+	}
+  count = theBlobDetection.getBlobNb(); // get the numbers of blobs captured
+  println(count); // print out the numbers in Processing console
+}
+</source>
+[[File:codeProcessing2.jpg]]
 ==Webcam Setup of the DBL==