What does hdr mean when Apple takes pictures?

HDR is the abbreviation of "High Dynamic Range" in English, which means high dynamic range. When taking photos with Apple's mobile phone, starting HDR mode will take three photos, namely, three different exposure value with low light, medium light and high light. Then three photos are combined into one photo by software algorithm, which emphasizes the contrast between light and dark and the expression of details in the photo, making the picture more vivid and natural, and avoiding the problem of overexposure or underexposure of the photo.

HDR technology appeared as early as 2005, but its popularity was not high at that time, and it was mainly used in professional photography and high-end cameras. With the development of mobile photography, this technology has also been applied to smart phones. After Apple introduced the HDR function, it was quickly welcomed by users and became one of the essential functions of daily photography. However, not all scenes or subjects are suitable for HDR mode, and users need to judge whether to use it according to the specific situation in order to achieve the best results.

Generally speaking, the HDR function of Apple's mobile phone is a very practical function. Starting HDR mode can make photo shooting more realistic and natural, and can record more details and textures. At the same time, HDR mode also needs some computing power, so it is normal to have a slight delay after shooting. When using HDR function, users should choose whether to enable it according to specific scenarios and personal needs.