[function.getimagesize]: failed to open stream error

The server I'm using is WAMP, and it does upload the image every time without error, but I'm recieving this error:

Warning: getimagesize(C:\wamp\tmp\php11AC.tmp) [function.getimagesize]: failed to open stream: No such file or directory in C:\........................... on line 15

the code is as follows

$name = $_FILES['creature_image']['name'];
$temp = $_FILES['creature_image']['tmp_name'];
$type = $_FILES['creature_image']['type'];
$size = $_FILES['creature_image']['size'];
print_r($_FILES);

$img_size = getimagesize( $temp ); //size of uploaded image
echo "<br>";
print_r($img_size);
$width=		$img_size[0];
$height=		$img_size[1];

the print_r dumps are:

Array ( [creature_image] => Array ( [name] => hare-rabbit-notes-and-que-006[1].jpg [type] => image/jpeg [tmp_name] => C:\wamp\tmp\phpF25E.tmp [error] => 0 [size] => 35343 ) )
Array ( [0] => 460 [1] => 276 [2] => 2 [3] => width="460" height="276" [bits] => 8 [channels] => 3 [mime] => image/jpeg )
Array ( [creature_image] => Array ( [name] => hare-rabbit-notes-and-que-006[1].jpg [type] => image/jpeg [tmp_name] => C:\wamp\tmp\phpF25E.tmp [error] => 0 [size] => 35343 ) )

Why am I getting the error when data is there?