Black background when using imagecreatefromjpeg with offset image

$jpeg_quality = 90;
$path = "/";
$src = 'wildbush-black.jpg';

list($width, $height) = getimagesize($src);
$new_width = $width ;
$new_height = $height ;

$img_src = imagecreatefromjpeg($src);
$img_dest = ImageCreateTrueColor( $new_width, $new_height );

imagecopyresampled(
    $img_dest, //destination image
    $img_src, //source image
    0, //top left coordinate of the destination image in x direction
    0, //top left coordinate of the destination image in y direction
    -10, //top left coordinate in x direction of source image that I want copying to start at
    10, //top left coordinate in y direction of source image that I want copying to start at
    $new_width, //190, thumbnail width
    $new_height, //190, thumbnail height
    $width, //how wide the rectangle from the source image we want thumbnailed is
    $height //how high the rectangle from the source image we want thumbnailed is
);

imagejpeg($img_dest,"test.jpg",$jpeg_quality);