Archive Browser

function main()
{
  for(var i = 0; i < picture.Length; i++)
  {
    let current = picture.getPixel(i);
    let grayscale = toGrayScale(current);

    picture.setPixel(i, grayscale);
  }
}

function toGrayScale(c)
{
  let red = c.R;
  let green = c.G;
  let blue = c.B;
  let gray = red * 0.3 + green * 0.59 + blue * 0.11;

  return color.FromArgb(gray, gray, gray);
}