visualization vs visual image

visualization and visual image both are nouns.

Word	Noun	Adjective	Verb	Adverb
visualization	Yes	No	No	No
visual image	Yes	No	No	No

As nouns, visualization and visual image are synonyms defined as:

visualization and visual image: a mental image that is similar to a visual perception

Other synonyms of visualization include visualisation.

visualization (noun)	visual image (noun)
a mental image that is similar to a visual perception	a percept that arises from the eyes; an image in the visual system
	a mental image that is similar to a visual perception