Image library (GD) resize problem

[eluser]RaBu[/eluser]
Hi,

I'm trying to re-size a newly uploaded image-file in a controller function, I get no errors and the image get re-sized just fine, but the quality is crap. The image get very dusty and with a low amount of colors (in the blue-, gray-, white-ish scale).

Code:

$imageconfig['image_library'] = 'GD';
$imageconfig['source_image'] = "uploads/".$uploadFiles['0'];
$imageconfig['quality'] = "100%";
$imageconfig['maintain_ratio'] = TRUE;
$imageconfig['width'] = 250;
$imageconfig['height'] = 150;

$this->load->library('image_lib', $imageconfig);

$this->image_lib->resize();

Anyone else have experienced this problem?

Kind regards,
Rasmus