Evaluation of Bright and Dark Details in HDR Scenes: A Multitask CNN Approach

The Human Visual System (HVS) can adapt to very extreme light conditions that can expand a dynamic range of 120 dB with adaptation, and up to 40 dB without adaptation [17]. However, most cameras find it challenging to reproduce fine details under High Dynamic Range (HDR) scenes (with dynamic range up to 80 dB). The difficulty lies in their ability to properly expose both dark and bright areas simultaneously and render (tone map) the information pleasantly into a limited dynamic range