1. A CMOS image sensor, comprising: a plurality of pixel sensors arranged in a form of a two-dimensional array, each pixel sensor having a width-to-length ratio of about 1:2, whereby the each pixel sensor is rectangular, and vertical and horizontal resolutions of the two-dimensional array of the plurality of pixel sensors are the same, wherein rows and columns of the two-dimensional array of the plurality of pixel sensors have the same number of pixel data, composed of data of pixels that are not interpolated and data of pixels that are interpolated, the data of pixels that are interpolated are inserted at points where a vertical and a horizontal lines intersect, for both the rows and columns of the two-dimensional array of the plurality of pixel sensors, the data of pixels that are not interpolated and the data of pixels that are interpolated are alternately output from the two-dimensional array of the plurality of pixel sensors, and pixel values of color of the data of pixels that are interpolated are estimated from neighboring data of pixels.