//--------------------------------------------------------------
void ofApp::update(){
// Grab the camera feed
// and check for new frames
grabber.update();
if(grabber.isFrameNew()){
// Get pixel data and
// pre-process the image
rgb.setFromPixels(grabber.getPixels(), grabber.getWidth(), grabber.getHeight());
rgb.mirror(false, true);
if(dilate) rgb.dilate();
if(erode) rgb.erode();
if(blur) rgb.blur(33);
// Convert to grayscale
grayscale = rgb;
// Get difference
difference.absDiff(background, grayscale);
difference.threshold(threshold);
// Find blobs - input, min_size, max_size, how many?, find holes?
contour.findContours(difference, 1000, grabber.getWidth()*grabber.getHeight(), 1, false);
// Background learning
// Mix the grayscale image with background
// to get a smoother transfer (trails)
/*
unsigned char *gray = grayscale.getPixels();
unsigned char *bg = background.getPixels();
for(int i=0; i<grabber.width*grabber.height; i++){
bg[i] *= 0.9;
bg[i] += gray[i]*0.1;
}
background = bg;
*/
}
updateFlock();
}
FlockWidget::FlockWidget(QWidget *parent) : QWidget(parent)
{
flockTimer = new QTimer(this);
connect(flockTimer,SIGNAL(timeout()), this, SLOT(updateFlock()));
flockTimer->start(FRAME_TIME);
attractionFactor = ATT_FACTOR_DEFAULT;
distanceFactor = DIST_FACTOR_DEFAULT;
speedFactor = SPEED_FACTOR_DEFAULT;
jitterFactor = JITTER_DEFAULT;
paranoiaFactor = PARANOIA_DEFAULT;
aggressionFactor = AGG_DEFAULT;
}
