if statement - Showing an image and replacing it with another image if something happens -

i use color tracking code processing.

what want (example):

• if red detected show image 1
• if green detected show image 2
• if blue detected show image 3

the problem is, if last color detected , last image shown, , track first color first image not in front (i can't see it).

the whole code:

 import processing.video.*; //import hypermedia.net.*;   pimage img; pimage img2; pimage img3;  capture video;  final int tolerance = 20;  float xrc = 0;// xy coordinate of center of first target float yrc = 0; float xrh = 0;// xy coordinate of center of second target float yrh = 0; float xrc2 = 0; // xy coordinate of center of third target float yrc2 = 0; float xrh2 = 0;// xy coordinate of center of fourth target float yrh2 = 0;  int ii=0; //mouse click counter  color trackcolor; //the first color center of robot  color trackcolor2; //the second color head of robot color trackcolor3; //the first color center of robot 2 color trackcolor4; //the first color center of robot 2  void setup() { img = loadimage("img_4700.jpg"); img2 = loadimage("2.jpg"); img3 = loadimage("3.jpg"); size(800,800); video = new capture(this,640,480); video.start();  trackcolor = color(94,164,126); trackcolor2 = color(60,110,194); trackcolor3 = color(197, 76,64); trackcolor4 = color(255,0,0); smooth(); }  void draw() { background(0); if (video.available()) {     video.read(); }  video.loadpixels(); image(video,0,0);    float r2 = red(trackcolor);   float g2 = green(trackcolor);   float b2 = blue(trackcolor);    float r3 = red(trackcolor2);   float g3 = green(trackcolor2);   float b3 = blue(trackcolor2);    float r4 = red(trackcolor3);   float g4 = green(trackcolor3);   float b4 = blue(trackcolor3);    float r5 = red(trackcolor4);   float g5 = green(trackcolor4);   float b5 = blue(trackcolor4);     int somme_x = 0, somme_y = 0; // pour le calcul des baricentres   int compteur = 0;    int somme_x2 = 0, somme_y2 = 0; // pour le calcul des baricentres   int compteur2 = 0;    int somme_x3 = 0, somme_y3 = 0; // pour le calcul des baricentres   int compteur3 = 0;    int somme_x4 = 0, somme_y4 = 0; // pour le calcul des baricentres   int compteur4 = 0;     for(int x = 0; x < video.width; x++) {     for(int y = 0; y < video.height; y++) {        int currentloc = x + y*video.width;       color currentcolor = video.pixels[currentloc];        float r1 = red(currentcolor);       float g1 = green(currentcolor);       float b1 = blue(currentcolor);         if(dist(r1,g1,b1,r2,g2,b2) < tolerance) {          somme_x += x;          somme_y += y;         compteur++;       }        else if(compteur > 0) {          xrc = somme_x / compteur;         yrc = somme_y / compteur;       }         if(dist(r1,g1,b1,r3,g3,b3) < tolerance) {          somme_x2 += x;          somme_y2 += y;         compteur2++;       }        else if(compteur2 > 0) {          xrh = somme_x2 / compteur2;         yrh = somme_y2 / compteur2;       }        if(dist(r1,g1,b1,r4,g4,b4) < tolerance) {          somme_x3 += x;          somme_y3 += y;         compteur3++;       }        else if(compteur3 > 0) {          xrc2 = somme_x3 / compteur3;         yrc2 = somme_y3 / compteur3;       }        if(dist(r1,g1,b1,r5,g5,b5) < tolerance) {          somme_x4 += x;          somme_y4 += y;         compteur4++;       }        else if(compteur4 > 0) {          xrh2 = somme_x4 / compteur4;         yrh2 = somme_y4 / compteur4;       }    }   }   // track color , show images boolean c1 = false; boolean c2 = false; boolean c3 = false;     if(xrc != 0 || yrc != 0) { // color green detected     c1 = true;     c2 = false;     c3 = false;    }       if(xrh != 0 || yrh != 0) { // color blue detected     c2 = true;     c1 = false;     c3 = false;    }      if(xrc2 != 0 || yrc2 != 0) { // color red detected       c3 = true;       c1 = false;       c2 = false;     }        if(c1 == true) {        image(img,0,0); // show image 1       } else if (c2 == true) {        image(img2,0,0); // show image 2      } else if (c3 == true) {        image(img3,0,0); // show image 3      }  } 

the important snippet:

// detect color , show images boolean c1 = false; boolean c2 = false; boolean c3 = false;     if(xrc != 0 || yrc != 0) { // color green detected     c1 = true;     c2 = false;     c3 = false;    }       if(xrh != 0 || yrh != 0) { // color blue detected     c2 = true;     c1 = false;     c3 = false;    }      if(xrc2 != 0 || yrc2 != 0) { // color red detected       c3 = true;       c1 = false;       c2 = false;     }        if(c1 == true) {        image(img,0,0); // show image 1       } else if (c2 == true) {        image(img2,0,0); // show image 2      } else if (c3 == true) {        image(img3,0,0); // show image 3      } 

screenshots:

first object tracked , image shown

second object tracked , image shown

third object tracked , image shown

my problem: (the first object should tracked , first image should me shown)

hummm... without running code, i'd bet problem rely on coordinates (xrc , it's siblings) being 0 choose image use. initiated 0, first run goes fine, but... never reset them zero, you? after have being changed once detecting 3 colors test became useless. perhaps can reset them 0 whenever color detected.

and maybe don't need boolean @ all...

what think of this?

pseudo

//global pimage imgs = new pimage[3];  int imagetodispaly = 0;     //all stuff...       if(xrc != 0 || yrc != 0) { // color green detected   // not sure work, idea thing this.   xrh = yrh = xrc2 = yrc2 = 0;   imagetodispaly = 0;  }    if(xrh != 0 || yrh != 0) { // color blue detected   xrc = yrc = xrc2 = yrc2 = 0;   imagetodispaly = 1;  }   if(xrc2 != 0 || yrc2 != 0) { // color red detected   xrh = yrh = xrc = yrc = 0;   imagetodispaly = 2;  }  // @ appropriated time... image(imgs[imagetodispaly], x, y);