1. An image processing apparatus comprising: an image sensor including a plurality of first pixels configured to detect an image and a plurality of second pixels configured to detect a different type of signal than the plurality of first pixels, the image sensor being configured to output a first sampling image by performing a first sampling on all pixels included in the plurality of first pixels and the plurality of second pixels, based on a predetermined rule, wherein the first sampling on the all pixels is performed by binning values of at least two of the plurality of first pixels without binning values of the plurality of second pixels, wherein the first sampling image is outputted by separating first sampling pixels obtained from the first sampling into the binned values of the plurality of first pixels and values other than the binned values in the first sampling pixels; and an image processor configured to restore values of at least one of the plurality of second pixels to be image pixel values for locations of the at least one of the plurality of second pixels included in the first sampling image, to output a restored image based on the restored values, to perform binning on pixels of the restored image using a predetermined method, and to output a reduced resolution image with a resolution reduced at a predetermined rate from the restored image, based on the binning.