enwandu-Project-09-Portrait

sketch

// Emmmanuel Nwandu
// enwandu@andrew.cmu.edu
// Section D
// Project-09: Computational Portrait

var underlyingImage;
var angle = 5;
var radius = 1;
var eWidth = 2;

function preload() {
    underlyingImage = loadImage("https://i.imgur.com/fP2WiY5.jpg?1");
}

function setup() {
    createCanvas(400, 360);
    background(0);
    underlyingImage.loadPixels();
    frameRate(5000);
}

function DrawSpiral(){
    // Start spiral in the middle of canvas
    translate(width/2, height/2);
    var x = cos(radians(angle))* radius;
    var y = sin(radians(angle))* radius;
    var centerX = 0;
    var centerY = 0;

    // Gets the color of the pixels in the underlaying image
    var theColorAtLocationXY = underlyingImage.get(width/2 - x, height/2 - y);

    fill(theColorAtLocationXY); // Colors the pixel based on the underlaying image
    noStroke(0);
    ellipse(centerX - x, centerY - y, eWidth, eWidth)

    //pixel dimensions
    angle += 2; //the angle between rays of pixels
    radius += 0.02; //the density of the spiral
    eWidth = eWidth + .0005; //the increase in pixel size
}

function draw(){
    DrawSpiral();
}

This computational portrait in one of myself. It is an image from my 60’s album cover entitled “A Romantic Evening With You”. I used a spiral of ellipses to generated the underlying image in order to give the portrait a nostalgic vinyl record type feel or spinning record.

Original:

Final Computational Portrait: