my $imageTool=Image::Magick->new(magick=>'JPEG');
    my $image=$imageTool->read($image_filename);
    my $err=$imageTool->Composite(
		'image' => $text_overlay,
		'opacity' => '15%',
		'compose' => 'Atop',
		'rotate' => 5, 
		'tile'   => 'true',
	);