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#include "ofApp.h"
//--------------------------------------------------------------
void ofApp::setup(){
wwidth = 1920;
wheight = 1080;
vidGrabber.listDevices();
vidGrabber.setVerbose(true);
vidGrabber.setup(320,240);
ofSetWindowShape(wwidth, wheight);
bLearnBackground=false;
colorImg.allocate(320,240);
grayImage.allocate(320,240);
grayBg.allocate(320,240);
grayDiff.allocate(320,240);
// opencv blob detector
SimpleBlobDetector::Params pDefaultBLOB;
// This is default parameters for SimpleBlobDetector
pDefaultBLOB.thresholdStep = 10;
pDefaultBLOB.minThreshold = 10;
pDefaultBLOB.maxThreshold = 220;
pDefaultBLOB.minRepeatability = 2;
pDefaultBLOB.minDistBetweenBlobs = 10;
pDefaultBLOB.filterByColor = false;
pDefaultBLOB.blobColor = 0;
pDefaultBLOB.filterByArea = false;
pDefaultBLOB.minArea = 25;
pDefaultBLOB.maxArea = 5000;
pDefaultBLOB.filterByCircularity = false;
pDefaultBLOB.minCircularity = 0.9f;
pDefaultBLOB.maxCircularity = (float)1e37;
pDefaultBLOB.filterByInertia = false;
pDefaultBLOB.minInertiaRatio = 0.1f;
pDefaultBLOB.maxInertiaRatio = (float)1e37;
pDefaultBLOB.filterByConvexity = false;
pDefaultBLOB.minConvexity = 0.95f;
pDefaultBLOB.maxConvexity = (float)1e37;
}
//--------------------------------------------------------------
void ofApp::update(){
vidGrabber.update();
pix = vidGrabber.getPixels();
// contour example stuff
if (vidGrabber.isFrameNew()){
colorImg.setFromPixels(vidGrabber.getPixels());
grayImage = colorImg; // convert our color image to a grayscale image
if (bLearnBackground == true) {
grayBg = grayImage; // update the background image
bLearnBackground = false;
}
grayDiff.absDiff(grayBg, grayImage);
grayDiff.threshold(30);
contourFinder.findContours(grayDiff, 5, (340*240)/4, 4, false, true);
}
}
//--------------------------------------------------------------
void ofApp::draw(){
vidGrabber.draw(wwidth/2,wheight/2, 320, 240);
ofSetHexColor(0xffffff);
colorImg.draw(0, 0, 320, 240);
grayDiff.draw(0, 240, 320, 240);
ofDrawRectangle(320, 0, 320, 240);
contourFinder.draw(320, 0, 320, 240);
ofColor c(255, 255, 255);
for(int i = 0; i < contourFinder.nBlobs; i++) {
ofRectangle r = contourFinder.blobs.at(i).boundingRect;
r.x += 320; r.y += 240;
c.setHsb(i * 64, 255, 255);
ofSetColor(c);
ofDrawRectangle(r);
}
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}
//--------------------------------------------------------------
void ofApp::keyPressed(int key){
}
//--------------------------------------------------------------
void ofApp::keyReleased(int key){
}
//--------------------------------------------------------------
void ofApp::mouseMoved(int x, int y ){
}
//--------------------------------------------------------------
void ofApp::mouseDragged(int x, int y, int button){
}
//--------------------------------------------------------------
void ofApp::mousePressed(int x, int y, int button){
}
//--------------------------------------------------------------
void ofApp::mouseReleased(int x, int y, int button){
}
//--------------------------------------------------------------
void ofApp::mouseEntered(int x, int y){
}
//--------------------------------------------------------------
void ofApp::mouseExited(int x, int y){
}
//--------------------------------------------------------------
void ofApp::windowResized(int w, int h){
}
//--------------------------------------------------------------
void ofApp::gotMessage(ofMessage msg){
}
//--------------------------------------------------------------
void ofApp::dragEvent(ofDragInfo dragInfo){
}