Landscape waves

Random lines with different grey scale colors built a landscape.

Lines built a landscape with different grey color depths. Looks like a Satellite picture of a Landscape or ocean.

var power = 3;
var d = 16;

function setup() {
  var canvas = createCanvas(500, 500);
      canvas.parent('sketch');
  background(23,254,21);
}

function draw() {
    for(var y = 0; y < height; y++) {
    for (var x = 0; x < width; x++) {
      var total = 0;
      for (var i = d; i>= 1; i = i/2){
        total += noise(x/d, y/d) * d;
      }
      var turbulence = 128 * total / d;
      var base = (x * 0.2) + (y * 0.12);
      var offset = base + (power * turbulence / 256);
      var gray = abs(sin(offset)) * 256;
      stroke(gray);
      point(x, y);
    }
  }
}