Texture is the visual design element which refers to the surface of an object. There are two types of texture: tactile and implied.
Texture is one of the more subtle design elements. It can make an image richer and more interesting, but is not likely to save a poor composition all by itself (Shaw).
Types
1. Tactile texture is texture which we can feel or touch. Tactile texture, also referred to as “real texture” is three-dimensional.
2. Implied texture is a two-dimensional illusory texture which can be seen, but not touched.