Underexposure (noun)
Definition:
"Underexposure" has two main meanings. First, it refers to a situation where something does not get enough attention or publicity. For example, an event or a person might not be well-known because they haven’t been promoted enough. Second, in photography, "underexposure" means that film or a digital image has been exposed to too little light, resulting in a photo that is too dark.
"Underexposure" is an important term that can apply to both the fields of publicity and photography.