HDR mode captures several photos at different exposure levels, one underexposed, one correctly exposed, and one overexposed. These images are then combined to create a single image that retains details in both the highlights and shadows. HDR mode enhances details in both bright and dark areas. This enhancement can lead to a perceived increase in contrast because the transitions between light and dark areas become more defined.
Due to limitations in the HDR processing algorithm, it is recommended to take photos in brighter, well-lit conditions or switch to regular camera mode to achieve better results.