Image processing method and apparatus, computer storage medium, and electronic device

An electronic device, comprising:

• one or more processors;
• and
• a storage apparatus, configured to store one or more programs that, when executed by the one or more processors, cause the electronic device to perform an image processing method including:
• acquiring a diffuse reflection map and a shadow map of a three-dimensional (3D) model of an object, wherein the 3D model is constructed from a plurality of photos of the object within a predefined lighting environment;
• acquiring a shadow texel in a shadow region of the diffuse reflection map according to a corresponding shadow region in the shadow map;
• querying an average color lookup table according to spatial coordinate information of the shadow texel for an average brightness difference corresponding to the shadow texel;
• and
• determining restoration color information according to the average brightness difference, and restoring color information of the shadow texel according to the restoration color information.

A non-transitory computer readable storage medium storing one or more programs that, when executed by one or more processors of an electronic device, cause the electronic device to perform an image processing method including:

• acquiring a diffuse reflection map and a shadow map of a three-dimensional (3D) model of an object, wherein the 3D model is constructed from a plurality of photos of the object within a predefined lighting environment;
• acquiring a shadow texel in a shadow region of the diffuse reflection map according to a corresponding shadow region in the shadow map;
• querying an average color lookup table according to spatial coordinate information of the shadow texel for an average brightness difference corresponding to the shadow texel;
• and
• determining restoration color information according to the average brightness difference, and restoring color information of the shadow texel according to the restoration color information.