A display processor integrated circuit (for example, for a television or for a digital camera) includes a display processor portion and an on-chip programmable logic portion. The on-chip programmable logic portion can be configured or programmed to implement custom video and/or image enhancement functions. Accordingly, an individual television or camera manufacturer can have his/her own custom enhancement function incorporated into the display processor integrated circuit by having the programmable logic portion configured or programmed appropriately. In one embodiment, the programming of the programmable logic portion involves changing just one mask, thereby reducing the cost, complexity and time associated with implementing the custom video/image enhancement function.