PURPOSE: To secure the correction for the after-image over a wide range by giving processing to the output signals of the pickup tube via the frame or the field memory and then adding the coefficient to the present signal of the pickup tube output as well as to the 1-frame preceding input or output signal.

CONSTITUTION: Signal SO to be applied to input terminal 1 is applied to frame memory 2 to be delayed, and 1-frame preceding signal S-1 is delivered to be applied to coefficient circuit 3 and then to deliver signal S-1K to the output. Signal S-1K is then supplied to subtractor 4 to deliver signal S'O which gave correction to the after-image given from output terminal 5. The input signal of such compositon is used as the 1st TV signal, and the coefficient to be added to this TV signal is set to 1. Otherwise coefficients K'+1 and K' are added to present signal SO and 1- frame preceding signal S-1 each at coefficient circuits 7 and 6. And the relation between coefficients K and K' is set as K'=1/(1-K), and the signal which gave correction to the after-image is delivered through terminal 5.