1. An information processing device comprising: an image input unit that performs image division on an input image; an evaluation value generation unit that generates an evaluation value based on an image signal of the input image; and a plurality of signal processing units that perform signal processing on the image signal based on the evaluation value generated by the evaluation value generation unit, wherein the signal processing units of the plurality of signal processing units perform the signal processing using image signals of divided images divided by image input unit, wherein each signal processing unit of the plurality of signal processing units performs the signal processing after a correction process and outputs the image signal obtained after the correction process to the evaluation value generation unit, and wherein the evaluation value generation unit performs image combining using the image signals obtained after the correction process and supplied from the plurality of signal processing units and generates the evaluation value based on the image signal of a combined image.