Find the number of authors of the paper 'An Image Enhancement Method Based on Genetic Algorithm'.
How many authors does the publication 'An Image Enhancement Method Based on Genetic Algorithm' have?
SELECT ?answer WHERE { <https://dblp.org/rec/conf/icdip/HashemiKNM09> <https://dblp.org/rdf/schema#numberOfCreators> ?answer }
<https://dblp.org/rec/conf/icdip/HashemiKNM09>