| 摘要 |
PURPOSE:To prevent a false color signal generated in a specific color signal by performing multiplication by a coefficient when calculating a color signal from a signal read by a solid image picture element so that vertical substantial sensitivity distribution on the image pickup surface will nearly be symmetric. CONSTITUTION:A signal read out of color image pickup element 25 is delayed by one horizontal scanning period (1H) delay line 26 and subtracted from the output signal of element 25 by subtracter 29 to obtain color signals R and B. Those color signals are delayed by one-bit delay line 30 and then added to the last color signal by adder 31 to obtain signal R. This signal R is further delayed by 1H delay line 38 by 1H added to the output of adder 31 by adder 39 to obtain sinal R, which is applied to process circuit 34. the processing circuit for the signal R is added to make a coefficient for calculating output signal R vertically symmetric. Consequently, luminance signal Y outputted from adder 27 is never influenced, so that the picture quality will be improved as much as the false color signal disappears. |
