An image processing apparatus includes: an unit that performs second-order differentiation on an inputted image signal, and outputs the result as an edge enhancement signal; an unit that calculates a first difference value in a form of an absolute value of a difference between pixel values of two first pixels; an unit that calculates a second difference value in a form of an absolute value of a difference between pixel values of two second pixels; an unit that multiplies the second difference value by a first value; an unit that subtracts the multiplication result from the first difference value, limits a lower-limit value of the result to 0, and outputs the result as an edge adjustment coefficient; an unit that corrects the edge enhancement signal through multiplication by the edge adjustment coefficient; and an unit that adds the corrected edge enhancement signal to the image signal.