テスト

let img;

​

function preload(){

  img=loadImage('./photo.jpg');

}

function setup() {

  createCanvas(windowWidth, windowHeight);

  img.resize(width,height)

  background(0);

​

}

​

function draw() {

  for(let i=0;i<100;i++);

   let x=random(width);

   let y=random(height)

   let col=img.get(x,y);

   let hu =map(hue(col),0,255,2,100);

   let sa=map(saturation(col),0,255,2,100);

   let br=map(brightness(col),0,255,2,100);

   noStroke();

   fill(red(col),green(col),blue(col),120);

   rect(x,y,br,2);

}