get("#348") -- rgb functions

function makeIcon(img)

  local x, y, w, h = 0, 0, img.width, img.height -- full image

  lines = {}

  for yy=y, y+h-1 do

    local line = {}

    for xx=x, x+w-1 do

      pix = img.getInt(xx, yy)

      b = math.floor(bright(rgb(pix))*25+0.5)

      table.insert(line, string.char(string.byte("A")+b))

    end

    table.insert(lines, table.concat(line))

  end

  return table.concat(lines, ".")

end