You can try this:
$track=$_GET['title'];
// Call To Amazon Predefined Class
$client = new AmazonECS(AWS_API_KEY, AWS_API_SECRET_KEY, 'com', AWS_ASSOCIATE_TAG);
$response = $client->category('Books')->responseGroup('Images,Reviews,ItemAttributes,OfferSummary')->search($track);
// To Get Image
<img src="<?php echo $response->Items->Item[0]->LargeImage->URL ?>" width="233" height="300">
