What term describes an image that changes when a mouse rolls over it?

The term that accurately describes an image that changes when a mouse rolls over it is "rollover image." This concept refers to an interactive element in web design where the visual representation of the image alters based on user interaction, specifically when the cursor hovers over it.

Rollover images enhance user engagement by providing immediate visual feedback and can serve various functions, such as highlighting buttons or showcasing multiple product views. This technique is common in web interfaces, facilitating a more dynamic experience for users.

Other terms listed, such as "hover image" and "dynamic image," might convey similar ideas but do not accurately capture the specific nature of the interaction involved when the mouse rolls over an image. "Changeover image" is not a widely recognized term in this context, which makes "rollover image" the most precise designation.