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

y, w, h = img.height+62-83, 21, 21
x = img.width-w
if y < 0 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")

while x >= 0 do
  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 at x="..x..": "..sim.."%")
  
  if sim >= 99 then
    return "Aibo: "..x..", "..y..", "..x+w..", "..y+h
  end
  x = x-1
end

return "No Aibo"