Image photographing method applied to terminal, and terminal device

A terminal device, comprising:

• a photographing system comprising a lens;
• one or more processors;
• and
• a memory, having computer readable instructions stored thereon that, when executed by the one or more processors, cause the terminal device to:
• obtain a first image of a to-be-photographed object based on an input received by way of a user interface, the first image being obtained with the lens in a first position;
• detect a moiré pattern on the first image;
• in response to detecting the moiré pattern on the first image, automatically move the lens from the first position to a second position on a plane perpendicular to an optical axis of the lens;
• obtain at least one second image of the to-be-photographed object by obtaining one or more of the at least one second image with the lens in the second position or with the lens between the first position and the second position;
• restore a detected moiré pattern region of the first image based on the at least one second image to generate a restored image by replacing the moiré pattern region of the first image with a corresponding region of the at least one second image to generate the restored image, and
• output the restored image to a display.

A non-transitory computer readable medium having instructions stored thereon that, when executed by a processor, cause an apparatus to:

• obtain a first image of a to-be-photographed object based on an input received by way of a user interface, the first image being obtained with a lens in a first position;
• detect a moiré pattern on the first image;
• in response to detecting the moiré pattern on the first image, automatically move the lens from the first position to a second position on a plane perpendicular to an optical axis of the lens;
• obtain at least one second image of the to-be-photographed object by obtaining one or more of the at least one second image with the lens in the second position or with the lens between the first position and the second position;
• restore a detected moiré pattern region of the first image based on the at least one second image to generate a restored image by replacing the moiré pattern region of the first image with a corresponding region of the at least one second image to generate the restored image, and
• output the restored image to a display.