get("#356") -- num2hex
get("#348") -- rgb and bright

x, y, w, h = 109, 62, 21, 21
print("x2:", x+w, "y2:", y+h, "width, height:", img.width, img.height)

function isBright(pix)
  return bright(rgb(pix)) >= 0.8
end

for yy=y, y+h-1 do
  s = ""
  for xx=x, x+w-1 do
    pix = img.getInt(xx, yy)
    --s = s..num2hex(pix, 6).." "
    --s = s..(isBright(pix) and "*" or ".")
    b = string.char(string.byte("A")+math.floor(bright(rgb(pix))*25+0.5))
    s = s..b
  end
  print(s)
end