2026-04-10
WDR and HDR are two different processing technologies, one hardware-based and the other software-based. As for which is better, I'm personally a bit greedy. If both could be used simultaneously, I don't know if the effect would be better, or perhaps it wouldn't be possible at all. In reality, WDR and HDR have the same goal: to make the details in both bright and dark areas of an image clearer under high contrast conditions. They just differ in their implementation. While not entirely precise, it can be roughly understood that WDR is hardware-based, while HDR is software-based.
Normally, when we take photos, we prioritize exposing the highlights, which results in the loss of shadow details. If we only focus on shadow details, the highlights will be overexposed. To solve this problem, we use HDR technology. Simply put, an HDR photo includes both highlight and shadow details.
Incidentally, HDR can only be used for still images, while WDR, due to its principle and high-speed DSP support, can be used for moving images or videos.
