Abstract: An electronic device of an embodiment of the present document may include an image sensor including a unit pixel, and at least one processor electrically connected to the image sensor. The image sensor may read out light quantity data inputted to the unit pixel twice or more with a first conversion gain, and may read out the light quantity data with a second conversion gain lower than the first conversion gain to obtain a first image frame, and present the first image frame to the at least one processor. In addition to this, various embodiments identified through the specification are possible.

Abstract: An electronic device including an image sensor and a processor may be provided. The image sensor may provide, in a first mode, to the at least one processor, first image data may be obtained by outputting data input to a unit pixel of the image sensor with a first conversion gain, the first image data may have a first number of bits. The image sensor may provide, in a second mode, to the at least one processor, second image data may be obtained by outputting data input to the unit pixel of the image sensor with the first conversion gain and a second conversion gain. The second conversion gain may be lower than the first conversion gain. The second image data may have a second number of bits which may be larger than the first number of bits.

Abstract: An electronic device is provided. The electronic device includes a display, an image sensor including a color pixel sensor, a thermal image sensor, and a processor configured to acquire a first image of a subject using the color pixel sensor, acquire a second image of the subject using the thermal image sensor, and replace a part of an area of the first image with the second image thereby creating an modified first image that is output through the display.