Disclosed herein are a picture processing apparatus and a picture display apparatus. A picture processing apparatus includes: an interpolated picture data generation portion generating interpolated picture data at given points in time in the course of time-series picture data based on the time-series picture data; and a control portion controlling the interpolated picture data generation portion by using multi-screen information of the time-series picture data. A picture display apparatus includes: the interpolated picture data generation portion generating interpolated picture data at given points in time in the course of the time-series picture data based on the time-series picture data; a picture display portion displaying pictures derived from the time-series picture data including the interpolated picture data generated by the interpolated picture data generation portion; and the control portion controlling the interpolated picture data generation portion by using the multi-screen information of the time-series picture data.