Owen Fox project 9

customportrait

//Owen Fox
//olf@andrew.cmu.edu
//Section C
//Project week 9

var face0;
var x = 0;
var y = 0;
var r1 = 128;
var r2 = 255;
var g1 = 0;
var g2 = 230;
var b1 = 0;
var b2 = 230;

function preload() {
    //loads image of roommate's face
    var img0url = "http://i.imgur.com/xoW2D1C.png";
    face0 = loadImage(img0url);

}


function setup() {
    createCanvas(410, 804);
    background(0);
    face0.loadPixels();

}

function draw() {

    customPixel(x,y,face0,r1,g1,b1,r2,g2,b2);

    x = x + 10;
    //resets x to 0 after each line
    if (x > width) {
    x = 0;
    y = y + 10;
    }
    //when the progression reaches the bottom of the page, restarts and chooses a new random color pallete
    if (y > height) {
    clear();
    background(0);
    x = 0;
    y = 0;
    r1 = random(0,100);
    g1 = random(0,100);
    b1 = random(0,100);
    r2 = random(101,255);
    g2 = random(101,255);
    b2 = random(101,255);
    }



}

function customPixel(px,py,img,redstart,redstop,greenstart,greenstop,bluestart,bluestop) {

    //based on example code
    this.px = px;
    this.py = py;

    //gets the color of a given pixel of the image, then creates variables for each rgb value
    var theColorAtLocationXY = img.get(px, py);
    var r = theColorAtLocationXY[0];
    var g = theColorAtLocationXY[1];
    var b = theColorAtLocationXY[2];

    //maps natural colors to a monochromatic color pallete, or any colors assigned to the function
    red = map(r,0,255,redstart,redstop);
    green = map(g,0,255,greenstart,greenstop);
    blue = map(b,0,255,bluestart,bluestop);

    //draws each circle
    noStroke();
    fill(red,green,blue);
    ellipse(px, py, 10, 10);

}

draws a series of colored circles based on a picture taken of my roommate. When the circle progression gets to the bottom the program restarts, this time with a new set of colors.