Method and electronic device for adding virtual item

An electronic device for adding a virtual item, comprising:

• at least one processor;
• and
• a volatile or non-volatile memory configured to store at least one program comprising at least one instruction executable by the at least one processor;
• wherein the at least one instruction, when executed by the at least one processor, causes the at least one processor to perform a method comprising:
• acquiring classification identifiers of a plurality of pixel points in a target human face image, wherein the classification identifiers comprise a first identifier of pixel points in a first human face part or a second identifier of pixel points in a second human face part;
• determining a target region in the target human face image based on the classification identifiers, wherein the target region is a region belonging to the first human face part;
• and
• adding a virtual item to the target region;
• wherein the first human face part comprises an uncovered human face part, and the second human face part comprises a covered human face part or a non-human face part;
• wherein said adding the virtual item to the target region comprises:
• acquiring a reference image, wherein pixel values of pixel points in the reference image are determined by the classification identifiers;
• acquiring a first matrix, a second matrix, a third matrix and a fourth matrix, wherein:
• elements of the first matrix are equal to pixel values of pixel points with same positions in the target human face image;
• the second matrix has same size as the first matrix, and all elements of the second matrix are equal to 1;
• elements of the third matrix are equal to pixel values of pixel points with same positions in the reference image;
• and
• elements of the fourth matrix are equal to pixel values of pixel points with same positions in the virtual item;
• and
• generating, based on the first matrix, the second matrix, the third matrix and the fourth matrix, the target human face image added with the virtual item.

A non-transitory computer-readable storage medium storing at least one program comprising at least one instruction therein, wherein the at least one instruction, when executed by a processor of an electronic device, causes the electronic device to perform a method comprising:

• acquiring classification identifiers of a plurality of pixel points in a target human face image, wherein the classification identifiers comprise a first identifier of pixel points in a first human face part or a second identifier of pixel points in a second human face part;
• determining a target region in the target human face image based on the classification identifiers, wherein the target region is a region belonging to the first human face part;
• and
• adding a virtual item to the target region;
• wherein the first human face part comprises an uncovered human face part, and the second human face part comprises a covered human face part or a non-human face part;
• wherein said adding the virtual item to the target region comprises:
• acquiring a reference image, wherein pixel values of pixel points in the reference image are determined by the classification identifiers;
• acquiring a first matrix, a second matrix, a third matrix and a fourth matrix, wherein:
• elements of the first matrix are equal to pixel values of pixel points with same positions in the target human face image;
• the second matrix has same size as the first matrix, and all elements of the second matrix are equal to 1;
• elements of the third matrix are equal to pixel values of pixel points with same positions in the reference image;
• and
• elements of the fourth matrix are equal to pixel values of pixel points with same positions in the virtual item;
• and
• generating, based on the first matrix, the second matrix, the third matrix and the fourth matrix, the target human face image added with the virtual item.