hi people,  

i am trying to mask image by using Jmyron. it is working but too slow how can I solve it ? any suggestions?


//////////
import JMyron.*;
JMyron m;
PImage[] frames;
PImage img,bg;
float[][] mask;
float decay = 0.016;
//--------------------
void setup(){
 size(320,240);
 m = new JMyron();
 m.start(width,height);
 m.findGlobs(1);
 m.adaptivity(50.0);
 frameRate(50);
 frames = new PImage[2];
 frames[0] = loadImage("car1.jpg");
 frames[1] = loadImage("car2.jpg");
 mask = new float[width][height];
}
//--------------------
void draw(){
 loadPixels();
 m.update();
 m.imageCopy(pixels);
 int[][] b = m.globBoxes();
 for(int i=0 ; i<width ; i++){
   for(int j=0 ; j<height ; j++){
for(int c=0 ; c<b.length ; c++){
float brush = brushPower(b[c][0] , b[c][1] ,i,j);
mask[i][j] = constrain( mask[i][j] - decay + brush, 0 , 1 );
//pixels[i+j*width] = getPixel(i,j);
    }
   }
   }
updatePixels();
}
//--------------------
float brushPower(int ox, int oy,int x, int y){
 float d = dist(ox,oy,x,y);
 return 0.09*exp(-d*d*0.00025);
}
//--------------------
color getPixel(int i, int j){
 float amount = mask[i][j];
 int index = i+j*width;
 if(amount<0.3333)
   return lerpColor(frames[0].pixels[index],frames[1].pixels[index],3*amount);
 else  
   return lerpColor(frames[1].pixels[index],frames[1].pixels[index],2*amount-1);
}

The moderators on this board take offense at posting multiple threads with the same topic. They have to remove the posts manually.

You could try searching for other computer vision topics on the board which deal with hacks to speed up image scanning if you're too impatient to wait for an answer. There's quite a few if you look hard enough. Thankfully the moderators have removed all of the double posted topics that would impede such a search. Otherwise I'm afraid you'll have to wait until someone with experience in your field comes along.