Catherine Coyle Project 9

sketch

// Catherine Coyle
// ccoyle@andrew.cmu.edu
// section C
// project 9

var img;
var currColor;
var ix;
var iy;
var seenColors = [];

// basic image loading code

function preload() {
    var imgurl = 'https://i.imgur.com/2TSW1Hy.png';
    img = loadImage(imgurl)

}

function setup() {
   createCanvas(480, 480);
   background(0);
   img.loadPixels();
}

function draw() {
    // this basic pixel grabbing format was taken from the example on the website
    var px = random(width);
    var py = random(height);
    ix = constrain(floor(px), 0, width-1);
    iy = constrain(floor(py), 0, height-1);
    currColor = img.get(ix, iy);
    // will draw the shape/pixel with the right color
    stroke(currColor);
    drawShape(px, py);
}

// drawing the pixel at given location
function drawShape(x, y) {
    var donutSize = calcSize();
    strokeWeight(donutSize);
    noFill();
    ellipse(x, y, donutSize * 2, donutSize * 2);

}


// the size of the donuts is based on the frequency of
// pixels w the same color
function calcSize() {
      var currColorBr = floor(brightness(currColor));
      seenColors.push(currColorBr);
      return constrain(countElements(currColorBr), 0, 20);
}


// idk if theres a java function that counts elements but
// i couldnt find one when i looked so i wrote one
function countElements(element) {
    var c = 0;
    for(var i = 0; i < seenColors.length; i++) {
        if (seenColors[i] == element) {
            c++;
        }
    }
    // mod 10 to make them not get too big
    return c % 10;
}

I thought this was a cool project! I chose my close friend Melissa as the subject because I think this is a really pretty picture of her that I took over the summer. She really likes donuts so I decided to make the ‘pixels’ all donut shaped. It felt too simple just doing that though so I wanted to add another aspect to it. I decided to have the sizes of the donuts be based on the frequency of the brightness of the pixels. It took a while because I found out that javascript doesn’t really have dictionaries which was disappointing so I just stored all the information in a list and wrote functions to count the frequency.

 

I am happy with how it turned out in the end!