代码：（代码转载自：http://ubaa.net/shared/processing/opencv/blob.html）
[cc lang=”c”]
import hypermedia.video.*;
OpenCV opencv;
void setup() {
size( 640, 480 );
// open video stream
opencv = new OpenCV( this );
opencv.capture( 640, 480 );
}
void draw() {
background(192);
opencv.read(); // grab frame from camera
opencv.threshold(80); // set black & white threshold
// find blobs
Blob[] blobs = opencv.blobs( 10, width*height/2, 100, true, OpenCV.MAX_VERTICES*4 );
// draw blob results
for( int i=0; i
