What does Lenovo mobile phone camera HDR mean?

HDR is a commonly used technology in photography, which is the abbreviation of English High-Dynamic Range, meaning "high dynamic range". HDR technology can overcome the shortcomings of limited dynamic range of most camera sensors, and control the tone of the picture within the range that can be recognized by human beings. It can superimpose multiple photos with different exposures into a delicate image.

HDR just wants to make the details of photos clear in highlights and shadows. Let's make it clear that when shooting works with large light ratio, we should reduce the light ratio to create underexposed highlights and underexposed dark tones. Let the effect of light be bright, while the darkness keeps more details, so that the outline and depth of an object can be distinguished, instead of a mass of black in the past. That is, for example, taking a picture of a bright sky, under normal circumstances, the result of shooting is either that the sky is too explosive or that the scenery on the ground is underexposed.

Non-HDR photos: The scenery on the surface is dark.

HDR picture. Details are preserved in the sky and on the ground.