| 摘要 |
PURPOSE:To prevent cross color disturbance by extracting a chromaticity signal directly in a line correlation state, and extracting the chromaticity signal through a BPF, which attenuates a luminance signal component, in other state. CONSTITUTION:The output of an LPF12 is amplified by an amplifier 13, whose output is processed by rectification 14 to form a line-correlation detection part which detects line correlation. With the output of this line correlation detection part, a switch circuit 16 extracts a chromaticity signal, separated at a line-correlation part, directly. The circuit 16 extracts a luminance signal, separated through a BPF10 whic attenuates a luminance component, where the line correlation is not born. Thus, cross-color disturbance is prevented securely and the resolution of color is improved. |
