go("#137") -- split

_, _, s = string.find(result, ": (.+)")

parts = split(s, ", ")

-- copy image

w, h = img.width, img.height

pixels = {}

for y = 0, h-1 do

  for x = 0, w-1 do

    pixels[y*w+x+1] = img.getInt(x, y)

  end

end

-- invert the segments

for _, segment in ipairs(parts) do

  x1, x2 = unpack(split(segment, "-"))

  for x = x1, x2-1 do

    for y = 0, h-1 do

      pixels[y*w+x+1] = 0xFFFFFF - pixels[y*w+x+1]

    end

  end

end