Thank you Stephen for your reply. We work with openalpr to access control (using RPI3), and planning to migrate to Sigthhound for both plate and face recognition. I will contact you for further discussion.
Hello from Chile, The plate recognition engine sometimes fails because of plate pattern (for instance, an "8" instead of "B" where should be only letters). An API response with the top N results can be very useful to compare the candidates against the pattern and improve accuracy...