Array
(
    [image_height] => 
    [image_width] => 
    [background] => Array
        (
            [0] => 255
            [1] => 255
            [2] => 255
        )

    [angle] => 
    [quality] => 70
    [keep_aspect_ratio] => 1
    [keep_frame] => 1
    [keep_transparency] => 1
    [constrain_only] => 1
)