image vs picture

image and picture both are nouns.

Word	Noun	Adjective	Verb	Adverb
image	Yes	No	Yes	No
picture	Yes	No	Yes	No

As nouns, image and picture are synonyms defined as:

image and picture: a visual representation (of an object or scene or person or abstraction) produced on a surface

Other synonyms of image include icon, ikon.

As nouns, picture is a hyponym of image; that is, picture is a word with a more specific, narrower meaning than image:

As verbs, image and picture are synonyms defined as:

Other synonyms of image include envision, fancy, figure, project, see, visualise, visualize.

image (noun)	picture (noun)
a visual representation (of an object or scene or person or abstraction) produced on a surface	a visual representation (of an object or scene or person or abstraction) produced on a surface
a representation of a person (especially in the form of sculpture)	graphic art consisting of an artistic composition made by applying paints to a surface
(Jungian psychology) a personal facade that one presents to the world	a representation of a person or scene in the form of a print or transparent slide or in digital format
the general impression that something (a person or organization or product) presents to the public	a clear and telling mental image
an iconic mental representation	a typical example of some state or quality
a standard or typical example	illustrations used to decorate or explain a text
language used in a figurative or nonliteral sense	the visible part of a television transmission
(mathematics) the set of values of the dependent variable for which a function is defined	a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement
someone who closely resembles a famous person (especially an actor)	a graphic or vivid verbal description
	a situation treated as an observable object

image (verb)	picture (verb)
imagine; conceive of; see in one's mind	show in, or as in, a picture
render visible, as by means of MRI	imagine; conceive of; see in one's mind