In my thought there are some difference between literature and art. Like work and the we define that. ex: Nice, Marvelous etc. A painting you don’t hear referred to as literature, but it can be spoken of in literary language (someone refers to it as "pure poetry," for example).
Generally, I though, it is probably best to not hesitant the issue. I like to call visual art "art" and written work "literature." It doesn't necessarily enhance either to call it by the common name of the other.
art is understood to be visual while literature is understood to be text. However, these categories are loose and different people use and call them in different ways. A painting can be called a work of art, and painters are occasionally referred to as artists.
