How to use?

Johno,

I tried your recent suggestions and still get the errors. The php.net page for imagecreatefromjpeg has many user contributed notes about errors caused by memory limits, photos taken with Canon PowerShot cameras, php configurations, etc. Perhaps one of those is the cause of problems, not the script.

davedee,

Also, replace the line

$sources[] = imagecreatefromjpeg($file);
with:

$sources[] = imagecreatefromjpeg($this->dir."/".$file);

Cheers Johno, thats fixed it. thanks again for your prompt attention to this issue.

I'm no longer getting errors but here's an example of my output:

ÿØÿà�JFIF�

��
�
&#65533;&#65533;ÿþ&#65533;;CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 75 ÿÛ&#65533;C&#65533;    $.' ",#(7),01444'9=82<.342ÿÛ&#65533;C
 2

Suggestions?

Jon,

You might be using Mozilla FF. In this case the browser is not converting the output correctly. Change your example or testfile file as follows:
$outfile = "/mosaic.jpg";
//$outfile = null;

Run the script (or refresh our browser) then go to the root directory eg c:/wamp/www and you should see the resulting image as mosaic.php

Jon,

Also add this line to your your example or test file:

$res = new buildMosaic($dir,$outfile,$quality);
/******/header('Content-type: image/jpeg');
$res->makeMos();

That did it! Thank you.