(PECL imagick 2.0.0)
Imagick::getImagesBlob — Returns all image sequences as a blob
Implements direct to memory image formats. It returns all image sequences as a string. The format of the image determines the format of the returned blob (GIF, JPEG, PNG, etc.). To return a different image format, use Imagick::setImageFormat().
Returns a string containing the images. On failure, throws ImagickException.