1. A dynamic white balance control circuit comprising: a color component detecting circuit to detect whether of a black and white image region or a colored image region in an input video signal and to output a color component detected result; a selecting circuit to select a white balance setting value designating a different color temperature according to said color component detected result indicating said black and white image region or said colored image region and to output the selected white balance setting value; and a white balance control circuit to calibrate a white balance of an input video signal according to the selected white balance setting value and to produce a video signal output.