a statistic data generating circuit configured to receive a first image signal and a second image signal from an external device;

an image processor configured to receive the first image signal and the second image signal; and

a direct memory access circuit connected to the statistic data generating circuit and the image processor, wherein:

the statistic data generating circuit is configured to perform first image pre-processing on the first image signal and to generate first statistic data based on the first image signal subjected to the first image pre-processing and is further configured to perform first image pre-processing on the second image signal and to generate second statistic data based on the second image signal subjected to the first image pre-processing,

the direct memory access circuit is configured to store the first statistic data and the second statistic data therein and to provide the stored first statistic data and the stored second statistic data to the image processor, and

the image processor is configured to perform second image pre-processing on the first image signal and to perform image processing on the first image signal based on the first statistic data and on the second statistic data.