Image processing method for image expansion and apparatus, and storage medium and device

An image processing method, performed by an electronic device, comprising:

• acquiring edge image information in an expansion direction of an original image;
• selecting a target expansion mode from at least two candidate expansion modes according to the edge image information, wherein the at least two candidate expansion modes comprise a first mode and a second mode, the first mode is to implement expansion by copying edge pixels, and the second mode is to implement expansion based on a neural network model;
• and
• processing the original image by using the target expansion mode to obtain a target image;
• wherein selecting the target expansion mode from the at least two candidate expansion modes according to the edge image information comprises:
• determining a complexity of image content of an edge region according to the edge image information;
• in response to determining that the complexity is less than or equal to a first preset complexity, determining the first mode as the target expansion mode;
• and
• in response to determining that the complexity is greater than a second preset complexity, determining the second mode as the target expansion mode, wherein the second preset complexity is greater than or equal to the first preset complexity.