I posted in another thread already and figured out what the actual problem is. I have a sketch where the video and blobdetection librarys are used. It works perfectly on any 32bit computer, but no on my Win7 64bit. Of course did I try to take the 32bit processing version (2.08b), but this didn't change anything. Also the compatibility mode did not change anything. Is there any way to make this work on a 64bit system?

Thanks!

Hi,

I'm trying to use the sample code of the BlobDetection library bd_webcam.

1. // - Super Fast Blur v1.1 by Mario Klingemann <http://incubator.quasimondo.com>
   // - BlobDetection library
   
   import processing.video.*;
   import blobDetection.*;
   
   Capture cam;
   BlobDetection theBlobDetection;
   PImage img;
   boolean newFrame=false;
   
   // ==================================================
   // setup()
   // ==================================================
   void setup()
   {
       // Size of applet
       size(640, 480);
       // Capture
       cam = new Capture(this, 40*4, 30*4, 15);
           // Comment the following line if you use Processing 1.5
           cam.start();
          
       // BlobDetection
       // img which will be sent to detection (a smaller copy of the cam frame);
       img = new PImage(80,60);
       theBlobDetection = new BlobDetection(img.width, img.height);
       theBlobDetection.setPosDiscrimination(true);
       theBlobDetection.setThreshold(0.2f); // will detect bright areas whose luminosity > 0.2f;
   }
   
   // ==================================================
   // captureEvent()
   // ==================================================
   void captureEvent(Capture cam)
   {
       cam.read();
       newFrame = true;
   }
   
   // ==================================================
   // draw()
   // ==================================================
   void draw()
   {
       if (newFrame)
       {
           newFrame=false;
           image(cam,0,0,width,height);
           img.copy(cam, 0, 0, cam.width, cam.height,
                   0, 0, img.width, img.height);
           fastblur(img, 2);
           theBlobDetection.computeBlobs(img.pixels);
           drawBlobsAndEdges(true,true);
       }
   }
   
   // ==================================================
   // drawBlobsAndEdges()
   // ==================================================
   void drawBlobsAndEdges(boolean drawBlobs, boolean drawEdges)
   {
       noFill();
       Blob b;
       EdgeVertex eA,eB;
       for (int n=0 ; n<theBlobDetection.getBlobNb() ; n++)
       {
           b=theBlobDetection.getBlob(n);
           if (b!=null)
           {
               // Edges
               if (drawEdges)
               {
                   strokeWeight(3);
                   stroke(0,255,0);
                   for (int m=0;m<b.getEdgeNb();m++)
                   {
                       eA = b.getEdgeVertexA(m);
                       eB = b.getEdgeVertexB(m);
                       if (eA !=null && eB !=null)
                           line(
                               eA.x*width, eA.y*height,
                               eB.x*width, eB.y*height
                               );
                   }
               }
   
               // Blobs
               if (drawBlobs)
               {
                   strokeWeight(1);
                   stroke(255,0,0);
                   rect(
                       b.xMin*width,b.yMin*height,
                       b.w*width,b.h*height
                       );
               }
   
           }
   
         }
   }
   
   // ==================================================
   // Super Fast Blur v1.1
   // by Mario Klingemann
   // <http://incubator.quasimondo.com>
   // ==================================================
   void fastblur(PImage img,int radius)
   {
    if (radius<1){
       return;
     }
     int w=img.width;
     int h=img.height;
     int wm=w-1;
     int hm=h-1;
     int wh=w*h;
     int div=radius+radius+1;
     int r[]=new int[wh];
     int g[]=new int[wh];
     int b[]=new int[wh];
     int rsum,gsum,bsum,x,y,i,p,p1,p2,yp,yi,yw;
     int vmin[] = new int[max(w,h)];
     int vmax[] = new int[max(w,h)];
     int[] pix=img.pixels;
     int dv[]=new int[256*div];
     for (i=0;i<256*div;i++){
       dv[i]=(i/div);
     }
   
     yw=yi=0;
   
     for (y=0;y<h;y++){
       rsum=gsum=bsum=0;
       for(i=-radius;i<=radius;i++){
         p=pix[yi+min(wm,max(i,0))];
         rsum+=(p & 0xff0000)>>16;
         gsum+=(p & 0x00ff00)>>8;
         bsum+= p & 0x0000ff;
       }
       for (x=0;x<w;x++){
   
         r[yi]=dv[rsum];
         g[yi]=dv[gsum];
         b[yi]=dv[bsum];
   
         if(y==0){
           vmin[x]=min(x+radius+1,wm);
           vmax[x]=max(x-radius,0);
         }
         p1=pix[yw+vmin[x]];
         p2=pix[yw+vmax[x]];
   
         rsum+=((p1 & 0xff0000)-(p2 & 0xff0000))>>16;
         gsum+=((p1 & 0x00ff00)-(p2 & 0x00ff00))>>8;
         bsum+= (p1 & 0x0000ff)-(p2 & 0x0000ff);
         yi++;
       }
       yw+=w;
     }
   
     for (x=0;x<w;x++){
       rsum=gsum=bsum=0;
       yp=-radius*w;
       for(i=-radius;i<=radius;i++){
         yi=max(0,yp)+x;
         rsum+=r[yi];
         gsum+=g[yi];
         bsum+=b[yi];
         yp+=w;
       }
       yi=x;
       for (y=0;y<h;y++){
         pix[yi]=0xff000000 | (dv[rsum]<<16) | (dv[gsum]<<8) | dv[bsum];
         if(x==0){
           vmin[y]=min(y+radius+1,hm)*w;
           vmax[y]=max(y-radius,0)*w;
         }
         p1=x+vmin[y];
         p2=x+vmax[y];
   
         rsum+=r[p1]-r[p2];
         gsum+=g[p1]-g[p2];
         bsum+=b[p1]-b[p2];
   
         yi+=w;
       }
     }
   
   }
   

 I have a HP EliteBook 8460p laptop (Win7 64bit) and want to use it's internal webcam. However, when I try to run the code, I get:

1. Exception in thread "Animation Thread" java.lang.RuntimeException: The requested resolution of 160x120, 15/1fps is not supported by the selected capture device.
   
       at processing.video.Capture.checkResIsValid(Capture.java:754)
       at processing.video.Capture.start(Capture.java:321)
       at bd_webcam.setup(bd_webcam.java:41)
       at processing.core.PApplet.handleDraw(PApplet.java:2241)
       at processing.core.PGraphicsJava2D.requestDraw(PGraphicsJava2D.java:243)
       at processing.core.PApplet.run(PApplet.java:2140)
       at java.lang.Thread.run(Thread.java:662)

The camera has to be capable of this resolution, also lower numbers don't work. Do you have any ideas? thanks!