visualizer vs percipient

visualizer and percipient both are nouns.

Word	Noun	Adjective	Verb	Adverb
visualizer	Yes	No	No	No
percipient	Yes	Yes	No	No

As nouns, percipient is a hypernym of visualizer; that is, percipient is a word with a broader meaning than visualizer:

visualizer: one whose prevailing mental imagery is visual
percipient: a person who becomes aware (of things or events) through the senses

Other hypernyms of visualizer include beholder, observer, perceiver.

visualizer (noun)	percipient (noun)
one whose prevailing mental imagery is visual	a person who becomes aware (of things or events) through the senses

visualizer (adjective)	percipient (adjective)
	characterized by ease and quickness in perceiving