Composer Package (PHPLeague) in Codeigniter loading class - php

Question

I am aiming to use the following package for my project Color Extractor.
I have composer working and setup in my project fine as per #philsturgeon's tutorial here, however I am stuck as the function returns an empty array for an image I know is there.
I am autoloading in the index.php using require FCPATH.'vendor/autoload.php';
And I have tested this using Phil's example.
My Code looks like this:
$client = new League\ColorExtractor\Client();
$image = $client->loadJpeg(FCPATH.'assets/images/tumblr_ma7gmzwfAq1r780z3o1_250.jpg');
// Get the most used color hex code
$palette = $image->extract();
// Get three most used color hex code
$palette = $image->extract(3);
// Change the Minimum Color Ratio (0 - 1)
// Default: 0
$image->setMinColorRatio(1);
$palette = $image->extract();
var_dump($palette);
Can anyone tell me what I am doing wrong here as I don't have any errors in my log and I get the standard output.
array(0) { }

Answer 1

I was being utterly stupid apologies for anyone who viewed this question I was trying to declare multiple variables with the same name and variants of the function.
My final code looks like
$client = new League\ColorExtractor\Client();
$image = $client->loadJpeg(FCPATH.'assets/images/tumblr_ma7gmzwfAq1r780z3o1_250.jpg');
$palette = $image->extract(3);
var_dump($palette);
Which returns an expected array like this.
array(3) { [0]=> string(7) "#E09D73" [1]=> string(7) "#AC4C34" [2]=>
string(7) "#EEDF6C" }