An electronic apparatus comprising: an image sensor; a display; and a user interface unit, a memory including at least one command; and a processor configured to control the electronic apparatus being coupled to the image sensor and the memory, wherein the processor is configured to: acquire, through the image sensor, one original image having a first bit number for each pixel, based on the original image being acquired through the image sensor, control the display to display the acquired original image, acquire, from the original image, a plurality of sub images each having a second bit number for each pixel that is smaller than the first bit number for each pixel, identify an amount of information on shapes of objects included in the plurality of sub images from each of the plurality of sub images, wherein information on the shapes of objects included in the plurality of sub images is identified through an edge detection, based on a user command for selecting at least one area among a plurality of areas included in the displayed original image being imputed through the user interface unit, acquire a synthesized weight for each area with respect to two sub images among the plurality of sub images based on the identified amount of the information by assigning a higher synthesized weight to a sub image having a larger amount of information on the shapes of objects included in the at least one area selected by the user, compared to other sub images of the plurality of sub images, and acquire a synthesized image based on the synthesized weight for each of the acquired area. an image sensor; a display; and a user interface unit, a memory including at least one command; and a processor configured to control the electronic apparatus being coupled to the image sensor and the memory, wherein the processor is configured to: acquire, through the image sensor, one original image having a first bit number for each pixel, based on the original image being acquired through the image sensor, control the display to display the acquired original image, acquire, from the original image, a plurality of sub images each having a second bit number for each pixel that is smaller than the first bit number for each pixel, identify an amount of information on shapes of objects included in the plurality of sub images from each of the plurality of sub images, wherein information on the shapes of objects included in the plurality of sub images is identified through an edge detection, based on a user command for selecting at least one area among a plurality of areas included in the displayed original image being imputed through the user interface unit, acquire a synthesized weight for each area with respect to two sub images among the plurality of sub images based on the identified amount of the information by assigning a higher synthesized weight to a sub image having a larger amount of information on the shapes of objects included in the at least one area selected by the user, compared to other sub images of the plurality of sub images, and acquire a synthesized image based on the synthesized weight for each of the acquired area. acquire, through the image sensor, one original image having a first bit number for each pixel, based on the original image being acquired through the image sensor, control the display to display the acquired original image, acquire, from the original image, a plurality of sub images each having a second bit number for each pixel that is smaller than the first bit number for each pixel, identify an amount of information on shapes of objects included in the plurality of sub images from each of the plurality of sub images, wherein information on the shapes of objects included in the plurality of sub images is identified through an edge detection, based on a user command for selecting at least one area among a plurality of areas included in the displayed original image being imputed through the user interface unit, acquire a synthesized weight for each area with respect to two sub images among the plurality of sub images based on the identified amount of the information by assigning a higher synthesized weight to a sub image having a larger amount of information on the shapes of objects included in the at least one area selected by the user, compared to other sub images of the plurality of sub images, and acquire a synthesized image based on the synthesized weight for each of the acquired area.