Method and apparatus for multi-exposure photography, and storage medium

An apparatus for multi-exposure photography, comprising:

• a processor;
• and
• a memory, configured to store instructions executable by the processor,
• wherein the processor is configured to:
• receive a screen touch operation;
• determine a collected frame corresponding to the screen touch operation;
• determine, according to a first rule, a subject area image corresponding to the screen touch operation from the collected frame corresponding to the screen touch operation;
• determine, according to a second rule, an alignment parameter of the subject area image corresponding to the screen touch operation;
• acquire a currently collected frame in real time;
• upon determining that the screen touch operation is the first received screen touch operation, synthesize, according to the alignment parameter of the subject area image corresponding to the screen touch operation, the subject area image corresponding to the screen touch operation into the currently collected frame, take the synthesized image to be an image with a multi-exposure processed effect and display the image with the multi-exposure processed effect;
• and when determining that the screen touch operation is not the first received screen touch operation, synthesize, according to corresponding alignment parameters, the subject area image corresponding to the screen touch operation and subject area images corresponding to all historical screen touch operations into the currently collected frame, take the synthesized image to be the image with the multi-exposure processed effect and display the image with the multi-exposure processed effect;
• and
• determine an image with a multi-exposure processed effect from the images with the multi-exposure processed effect, which are generated after a final screen touch operation, to be a multi-exposed result image.

A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a mobile terminal, cause the mobile terminal to perform a method for multi-exposure photography, comprising:

• receiving a screen touch operation;
• determining a collected frame corresponding to the screen touch operation;
• determining, according to a first rule, a subject area image corresponding to the screen touch operation from the collected frame corresponding to the screen touch operation;
• determining, according to a second rule, an alignment parameter of the subject area image corresponding to the screen touch operation;
• acquiring a currently collected frame in real time;
• when determining that the screen touch operation is the first received screen touch operation, synthesizing, according to the alignment parameter of the subject area image corresponding to the screen touch operation, the subject area image corresponding to the screen touch operation into the currently collected frame, taking the synthesized image to be an image with a multi-exposure processed effect and displaying the image with the multi-exposure processed effect;
• and when determining that the screen touch operation is not the first received screen touch operation, synthesizing, according to corresponding alignment parameters, the subject area image corresponding to the screen touch operation and subject area images corresponding to all historical screen touch operations into the currently collected frame, taking the synthesized image to be the image with the multi-exposure processed effect and displaying the image with the multi-exposure processed effect;
• and
• determining an image with a multi-exposure processed effect from the images with the multi-exposure processed effect, which are generated after a final screen touch operation, to be a multi-exposed result image.