A system according to the present invention reads image pickup signals for all lines from a CCD image sensor and inputs these signals to a delay circuit 20. The system retrieves signals [H0D] to [H5D] for six contiguous lines and sends these signals to a vertical spatial phase synchronization filter 37 via a horizontal spatial phase synchronization filter 36. These filters 36 and 37 synchronize horizontal and vertical spatial phases. The system performs the following operations on the basis of Cy (cyan), Ye (yellow), G (green), and Mg (magenta) in each pixel data for the signal whose horizontal and vertical phases are synchronized. S1r=Cy+G, S2r=Ye+Mg S1b=Cy+Mg, S2b=Ye+G These operations create new signals S1r, S2r, S1b, and S2b which are then sent to a C process circuit 60.
A first processing circuit subjects image data output from an A/D converter circuit to a first signal process to produce first image data. A second processing circuit subjects image data to a second signal process, which is independent of the first signal process, to produce second image data. The first and second processing circuits execute the first and second signal processes in a parallel manner to output the first and second image data to a display device and a system microcomputer.
The image processing system includes: an image pickup apparatus (10) including image pickup elements of a color difference line sequential system that outputs, as video signals, a luminance signal (Y) and a line sequential, color difference signal (U/V); and an image processing apparatus (20) which includes a signal interpolator (21) for interpolating the line sequential color difference signal (U/V) to separate the line sequential color difference signal (U/V) into two color difference signals (V) and (U). With this configuration, only two video signal lines are required to connect the image pickup apparatus (10) and the image processing apparatus (20), and even though the number of signal lines is reduced, image quality deterioration is suppressed.
