Image processing method and apparatus, electronic device and medium

An electronic device, comprising:

• one or more processors;
• a memory;
• and
• one or more applications,
• wherein the one or more applications are stored in the memory, and configured to be executed by the one or more processors to cause the one or more processor to:
• obtain at least two to-be-synthesized images, the at least two to-be-synthesized images being images of an object captured at different exposures;
• determine an image luminance value of each of the at least two to-be-synthesized images;
• determine, for each of the at least two to-be-synthesized images, a luminance weight of each pixel of the to-be-synthesized image based on the image luminance value of the to-be-synthesized image and a luminance value of each pixel of the to-be-synthesized image;
• and
• obtain a target image by performing image synthesis processing based on the luminance value of each pixel of the at least two to-be-synthesized images and the luminance weight of each pixel of the at least two to-be-synthesized images,
• wherein said determining the luminance weight of each pixel of the to-be-synthesized image based on the image luminance value of the to-be-synthesized image and the luminance value of each pixel of the to-be-synthesized image comprises:
• determining a first association image of the to-be-synthesized image, the first association image being a to-be-synthesized image having an image luminance value adjacent to the image luminance value of the to-be-synthesized image;
• and
• determining the luminance weight of each pixel of the to-be-synthesized image based on the image luminance value of the to-be-synthesized image, the image luminance value of the first association image, and the luminance value of each pixel of the to-be-synthesized image.

A non-transitory computer-readable medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, causes the processor to:

• obtain at least two to-be-synthesized images, the at least two to-be-synthesized images being images of an object captured at different exposures;
• determine an image luminance value of each of the at least two to-be-synthesized images;
• determine, for each of the at least two to-be-synthesized images, a luminance weight of each pixel of the to-be-synthesized image based on the image luminance value of the to-be-synthesized image and a luminance value of each pixel of the to-be-synthesized image;
• and
• obtain a target image by performing image synthesis processing based on the luminance value of each pixel of the at least two to-be-synthesized images and the luminance weight of each pixel of the at least two to-be-synthesized images,
• wherein the computer program, when executed by the processor, further causes the processor to:
• determine a first association image of the to-be-synthesized image, the first association image being a to-be-synthesized image having an image luminance value adjacent to the image luminance value of the to-be-synthesized image;
• and
• determine the luminance weight of each pixel of the to-be-synthesized image based on the image luminance value of the to-be-synthesized image, the image luminance value of the first association image, and the luminance value of each pixel of the to-be-synthesized image.