An image sensor (110, 210a-c, 1142) comprising: a pixel array including a plurality of pixels; a row driver configured to control the plurality of pixels; and an analog-to-digital converter configured to digitize a result sensed by the pixel array to generate a first image, wherein the pixel array includes: first pixel groups, wherein each first pixel group of the first pixel groups includes first white pixels and first color pixels among the plurality of pixels; and second pixel groups, wherein each second pixel group of the second pixel groups includes second white pixels and second color pixels among the plurality of pixels, and wherein first pixel data of the first image are generated based on the first white pixels and the first color pixels, and second pixel data of the first image are generated based on the second color pixels, wherein the row driver is configured to: activate a first transfer signal connected with the first white pixels and a second transfer signal connected with the first color pixels such that the first pixel data of the first image are generated based on the first white pixels and the first color pixels; and while a third transfer signal connected with the second white pixels is deactivated, activate a fourth transfer signal connected with the second color pixels such that the second pixel data of the first image are generated based on the second color pixels, wherein pixels included in one pixel group share one or more floating diffusion regions. a pixel array including a plurality of pixels; a row driver configured to control the plurality of pixels; and an analog-to-digital converter configured to digitize a result sensed by the pixel array to generate a first image, wherein the pixel array includes: first pixel groups, wherein each first pixel group of the first pixel groups includes first white pixels and first color pixels among the plurality of pixels; and second pixel groups, wherein each second pixel group of the second pixel groups includes second white pixels and second color pixels among the plurality of pixels, and first pixel groups, wherein each first pixel group of the first pixel groups includes first white pixels and first color pixels among the plurality of pixels; and second pixel groups, wherein each second pixel group of the second pixel groups includes second white pixels and second color pixels among the plurality of pixels, and wherein first pixel data of the first image are generated based on the first white pixels and the first color pixels, and second pixel data of the first image are generated based on the second color pixels, wherein the row driver is configured to: activate a first transfer signal connected with the first white pixels and a second transfer signal connected with the first color pixels such that the first pixel data of the first image are generated based on the first white pixels and the first color pixels; and while a third transfer signal connected with the second white pixels is deactivated, activate a fourth transfer signal connected with the second color pixels such that the second pixel data of the first image are generated based on the second color pixels, wherein pixels included in one pixel group share one or more floating diffusion regions. activate a first transfer signal connected with the first white pixels and a second transfer signal connected with the first color pixels such that the first pixel data of the first image are generated based on the first white pixels and the first color pixels; and while a third transfer signal connected with the second white pixels is deactivated, activate a fourth transfer signal connected with the second color pixels such that the second pixel data of the first image are generated based on the second color pixels, wherein pixels included in one pixel group share one or more floating diffusion regions.