how can encrypt image path thats in the database

Hmmm, Try this.

<?php 
//filename: image.php

$imagepath="phpimages/dog.jpg"; 

$image=imagecreatefromjpeg($imagepath); 

header('Content-Type: image/jpeg'); 

imagejpeg($image); 

?>

then use 
<img src="image.php" >
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