1. A method, comprising: obtaining, by a device comprising a processor, at least two images of different image quality of a target scene; and combining, according to data characteristics of the at least two images, the at least two images locally to obtain a target image, wherein the combining, according to the data characteristics of the at least two images, the at least two images locally to obtain the target image comprises: using a first partial region of a first image of a first resolution and a first dynamic range in the at least two images to replace a first corresponding region of a second image of a second resolution and a second dynamic range in the at least two images, to obtain the target image, wherein the first resolution is lower than the second resolution, and wherein the first dynamic range is greater than the second dynamic range, or using a second partial region of the first image of the first resolution and a first signal-to-noise ratio in the at least two images to replace a second corresponding region of the second image of the second resolution and a second signal-to-noise ratio in the at least two images, to obtain the target image, wherein the first resolution is lower than the second resolution, and wherein the first signal-to-noise ratio is greater than the second signal-to-noise ratio.