Abstract: A video printing apparatus for forming color separation films and a color film recording an image of a video signal of a desired frame is disclosed. The video signal is once recorded on a 1" video tape together with time codes denoting respective frames. The video signal of the extracted frame is processed by time error corrector, a noise reducer and a detail corrector and then the thus corrected video signal is converted into R, G, B signals which are then stored in frame memories. The color signals stored in the frame memories are successively read out and are supplied to an interpolator composed of a hard logic circuit to produce interpolated color signals composed of a great number of scanning lines. The interpolation can be effected by one of cubic convolution, bilinear and nearest neighbor methods in dependence upon a kind of the image to be interpolated. The interpolated color signals are supplied to an electronic color scanner for forming cyan, magenta, yellow and black color separation films.