Photographing method and electronic device

An electronic device, comprising:

• one or more processors;
• and
• one or more memories, wherein
• the one or more memories store one or more computer-executable programs, the one or more computer-executable programs comprise instructions, and when the instructions are executed by the one or more processors, the electronic device is caused to perform the steps of the photographing method comprising:
• determining a score of each frame of preview image in a snapshot mode;
• determining, from each group of preview images falling within an observation time window sequentially as time goes by, a candidate image of each group of preview images based on the score of each frame of preview image;
• buffering, each time a candidate image of a group of preview images is determined, the currently determined candidate image in one of one or more preset first buffer regions, fixing the currently determined candidate image in a preset observation buffer region in a case that all the first buffer regions are occupied, and replacing a candidate image with earliest buffer time in all the first buffer regions with the currently determined candidate image after a candidate image of a next group of preview images is determined;
• determining, in a case of detecting a photographing operation, a to-be-compared image of the photographing operation in response to the photographing operation from candidate images currently buffered in all the first buffer regions and the observation buffer region;
• and
• determining, based on a score of the to-be-compared image and the score of each frame of preview image within preset duration after an occurrence moment of the photographing operation, a manual snapshot image corresponding to the photographing operation from the to-be-compared image and all preview images within the preset duration.

A computer-readable storage medium, storing a computer-executable program, wherein the computer-executable program, when invoked by a computer, causes the computer to perform the steps of the photographing method comprising:

• determining a score of each frame of preview image in a snapshot mode;
• determining, from each group of preview images falling within an observation time window sequentially as time goes by, a candidate image of each group of preview images based on the score of each frame of preview image;
• buffering, each time a candidate image of a group of preview images is determined, the currently determined candidate image in one of one or more preset first buffer regions, fixing the currently determined candidate image in a preset observation buffer region in a case that all the first buffer regions are occupied, and replacing a candidate image with earliest buffer time in all the first buffer regions with the currently determined candidate image after a candidate image of a next group of preview images is determined;
• determining, in a case of detecting a photographing operation, a to-be-compared image of the photographing operation in response to the photographing operation from candidate images currently buffered in all the first buffer regions and the observation buffer region;
• and
• determining, based on a score of the to-be-compared image and the score of each frame of preview image within preset duration after an occurrence moment of the photographing operation, a manual snapshot image corresponding to the photographing operation from the to-be-compared image and all preview images within the preset duration.