What does HDR mean in the photo?

Generally, when we take pictures, we will take care of the exposure of high-light areas, and the dark details will be lost, while taking care of the dark details, the high-light parts will be overexposed. In order to solve this problem, we use HDR, which means high dynamic lighting rendering in Chinese. Simply put, a photo contains both highlights and dark details.

The specific method is to take at least three photos with different exposures with your camera, 10 at most seven photos. In these photos, different exposures were taken from low to high. Finally, these photos are called a photo by the software. The final effect is that the highlights of a photo are not exposed, and the details of the dark parts can be preserved. This is HDR technology.