What does hdr mean and what does it mean?

Hdr means high dynamic range imaging. In computer graphics and cinematography, it is a set of techniques used to achieve a larger exposure dynamic range than ordinary digital imaging techniques. The purpose of high dynamic range imaging is to correctly represent the brightness in the real world from direct sunlight to the darkest shadow.

The image quality improvement brought by HDR technology is intuitive and tangible, and even ordinary viewers can distinguish it with the naked eye. So many manufacturers have installed HDR technology on 20 16 TV products.