Cannot Output the Compressed image on WAMP server

[ghost]

I am having trouble displaying the compressed Image on my local server(WAMP).
The image compression works perfectly, but when I try to echo out the image in tag, it displays a broken image.

Heres my folder structure:

sample (root folder)
-images (inside sample)
-cached (inside images, here's where the cached file goes)
-f3ccdd27d2000e3f9255a7e3e2c48800.jpg(cached image)
-1.jpg (Image to be compressed, inside images folder)
-ImageCache.php (inside sample)
-index.php (inside sample)

Thanks!

[neotropic2023]

Same issue.
$imagecache->cached_image_directory = 'images/cached';
URL: //os.dev/php-image-cache-master/demo/mages/cached/46c4075edc3b25e6e54c45635704c838.jpeg

It is all right, minus /mages/ which should be /images/. Why is the 'i' being removed?

And see nothing in the class that would do that! Grr.

Wait, I see it.
"$image_url = $url . substr($image_path, 1);"

In function docroot_to_url.

[neotropic2023]

I made some changes here.
I added one more variable to be passed which is the URL.

$imagecache = new ImageCache();
$imagecache->cached_image_path = PATH TO\php-image-cache-master\demo\images\cached';
$imagecache->cached_image_url = 'URL TO/php-image-cache-master/demo/images/cached/';

On the class file, right below:
public $cached_image_directory;
ADDED
public $cached_image_url;

Then changed function docroot_to_url to:
private function docroot_to_url($src = null)
{
if( is_null( $src ) ) {
$src = $this->cached_filename;
}
$image_path = str_replace($this->cached_image_directory, '', $src);
$image_url = $this->cached_image_url . $image_path;
if($this->link_is_broken($image_url)) {
$this->error('Final image URL is broken');
}
return $image_url;
}

I just kept seeing paths appearing and for my structure setup I needed it to be this way.