At first glance, it might seem that Renaissance magicians such as Ficino and Agrippa had embraced the image magic tradition through their own astrological magic systems and shunned the ritual magic. What Renaissance magic represented, however, was the subsuming of image magic into a broader system that shared the goals of ritual magic. This new breed of magus seems to have accepted the basic tenets and procedures of the ritual magic genre while dissociating themselves from the particular texts that came before. It was this particular mixture that powered the ceremonial magic traditions that came to prominence in the nineteenth century, and that are perpetuated even today.
From a review of Frank Klaassen's dissertation