Kinect Projection Masking - Array out of bounds error

Hi,

I'm currently working on an end of year project for university called 'motion tracking projection mapping'.

I'm currently looking into 'projection masking' using the kinect depth image. Basically i'm wanting to project some imagery through a projector and onto a moving person. I'm using the resize function in order to enlarge my mask image without exceeding the limitations of the Kinect. I am then wanting to project this enlarged image to fit a person/area. I've managed to change the size of the window, however when i'm running my code I keep getting 'Array Index out of bounds exception 7500' whenever i'm trying to resize my image. The number on the error increases when increasing the values within my resize() function. The error occurs on line 41.

Any help anyone could give me would be greatly appreciated. The code i'm using is below:

`import SimpleOpenNI.*;
SimpleOpenNI kinect;

//distance in cm depth, adapt to room
int distance = 1500;
int distance2 = 3000;

int depthMapWidth = 640;
int depthMapHeight = 480;

PImage liveMap;

void setup(){
  size(1024,768);
  kinect = new SimpleOpenNI(this);
  if (kinect.isInit() == false){
    println("Camera not connected!");
    exit();
    return;
  }

  kinect.setMirror(true);
  kinect.enableDepth(); //enables depth image
  liveMap = createImage(640,480,RGB); //creates empty image that will be the mask
}

void draw(){
  background(color(0,0,0)); //set background colour to black
  kinect.update();
  int[] depthValues = kinect.depthMap(); //array, distances

  //liveMap.width = width;
  //liveMap.height = height;
  liveMap.loadPixels(); //overwrites pixels

for (int y=0; y<depthMapHeight; y++){
  for(int x=0; x<depthMapWidth; x++){
    int i= x+(y*depthMapWidth);
    int currentDepthValue = depthValues[i]; //calculates the numnber of pixels in the array and gets the distance value
    if (currentDepthValue>distance&&currentDepthValue<distance2) {
        liveMap.pixels[i] = color(255,255,255);  //if the distance lies within limits
        //change mask image to white
      } else {
        liveMap.pixels[i] = color(0,0,0);  //if no change to black (creating mask)
      }
    }
  }
//mask image updated for use
liveMap.resize(100,0);
liveMap.updatePixels();
image(liveMap,100,0); //change position here
}`

Thank you!