NVP2191 is a High-end and high-performance image signal processor(ISP) to upgrade CCTV camera. With F-DNR(Fog Digital Noise Reduction), users will have distinct images in any severe circumstances : fog, rain, etc. And users can get improved images by using combination of D-WDR and 3D-NR. In addition, special features such as sens-up, smart digital zoom, motion detection, polygon privacy mask zone and user defined OSD, etc. will help users to have better images.