get("#348") -- rgb and bright
get("#137") -- split

x, y, w, h = img.width+109-300, img.height+62-83, 21, 21
print("x2:", x+w, "y2:", y+h, "width, height:", img.width, img.height)
if x < 0 or y < 0 or x+w > img.width or y+h > img.height then return "No Aibo" end

aibo = [[
WWWWWWWWWWWWWWWWWWWWW
WWWW????????OOWWWWWWW
WWWW????????OZOWWWWWW
WWWW????????OZZOWWWWW
WWWW????????OZPZOWWWW
WWWW????????OZRPZOOOO
WWWW????????OZTRPZZZZ
????????????OZTTPZZZZ
????????????WOZTZZZZZ
????????OOOOWWOZZZZZZ
???????OZZZZOWOZ?????
WWWW??OZZZZYTOXZ?????
WWWW?OZZZZXTZOWZ?????
WWWWPWZZZZXYZOTYZZZZX
WWWWOWZZZZZZZVOVXXZXU
WWWWOXZWZZZZZVVOUXZZA
WWWWOXZVZZZZZOVVOTZZA
WWWWOXZVZZZZZZOVSOXXX
WWWWOXZRYZYYZZZOOAUUA
WWWWOWZPVXSXZZZZXXAAO
WWWWOYZVQURYZXXZYXXAO
]]

aibo = split(aibo, "\n")

total, count = 0, 0
for yy=y, y+h-1 do
  s = ""
  line = aibo[yy-y+1]
  for xx=x, x+w-1 do
    pix = img.getInt(xx, yy)
    --s = s..num2hex(pix, 6).." "
    --s = s..(isBright(pix) and "*" or ".")
    c = line:sub(xx-x+1, xx-x+1)
    if c ~= '?' then
      b = math.floor(bright(rgb(pix))*25+0.5)
      --print("c", c)
      lb = string.byte(c)-string.byte("A")
      diff = math.abs(b-lb)
      s = s..string.char(string.byte("A")+diff)
      total = total+diff
      count = count+1
    else
      s = s.."?"
    end
  end
  print(s)
end

sim = math.floor(100*(1-total/(count*25))+0.5)
print("Aibo similarity: "..sim.."%")

if sim >= 99 then
  return "Aibo: "..x..", "..y..", "..x+w..", "..y+h
else
  return "No Aibo"
end