gan mau tanya nih, ngatur patch gambar di TCPDF kalo make CI gimana ya??

$html = <<<EOD

<h1><div style="text-align:center">FORMULIR PENDAFTARAN CALON JAMAAH HAJI</div></h1>

<img src="../images/image_demo.jpg" alt="test alt attribute" width="100" height="100" border="0" />

<table border="1" >

 <tr>

 <td width="2%">1.</td>

 <td width="17%">Nama Lengkap </td>

 <td width="2%">:</td>

 <td>nama;</td>

 </tr>

 </table>

EOD;

nah ane nampilinya dalam tag html dlm TCPDF

tapi eror muli
munculnya kaya gini

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: controllers/pdf_test.php

Line Number: 15
===============================
A PHP Error was encountered

Severity: Warning

Message: getimagesize(../images/image_demo.jpg) [function.getimagesize]: failed to open stream: No such file or directory

Filename: tcpdf/tcpdf.php

Line Number: 8104
===================================
TCPDF ERROR:Missing or incorrect image file: ../images/image_demo.jpg