let cat;

function preload() {

  cat = loadImage("cat.jpg");

}

function setup() {

  createCanvas(cat.width, cat.height);

  background("red");

  pixelDensity(1);

  //background("red");

  myImage = createImage(width, height);

​

  cat.loadPixels();

  myImage.loadPixels();

  for (let i = cat.width*4; i < myImage.pixels.length; i++) {

    myImage.pixels[i] = cat.pixels[i];

  } 

  // erase tge middle line code -- row number* the pixel (cat.height=135pixel)

for(let i = 135 * cat.width*4; i < 136* cat.width*4; i++){

 myImage.pixels[i] = 0;

 }

​

​

  myImage.updatePixels();

​

  image(myImage, 0, 0);

}

​