Image not displaying, HTML to PDF Plugin

HI Team, 

I am converting html file to pdf, The image which i show as logo is not displaying and show white blank when i convert it into pdf, Attached html code , Any suggetsions ?

<!DOCTYPE html>
<html>
<head>
<style>
table {
font-family: arial, sans-serif;
border-collapse: collapse;
width: 100%;
}

td, th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}

tr:nth-child(even) {
background-color: #dddddd;
}

img {
display: block;
margin-left: auto;
margin-right: auto;
}

</style>
</head>
<body>

<img src="">www.cscsw.com/.../cscsw-logo.jpg" width="200" height="200", class="center">
<h2>
<

</body>
</html>