| 摘要 |
PURPOSE:To make a scale small by disposing a vertical direction and a horizon tal direction in series in parallel to the correction of a contour and a flare, using an FIR filter for correcting the contour and an IIR filter for correcting the flare, using a RAM for coefficient circuit such as filters and correcting by a digital means. CONSTITUTION:A digital luminance signal is inputted to a compensating delay device 25, passes through a vertical contour correction filter 21, a horizontal contour correction FIR filter 22 from a signal line (l) to input to a subtraction circuit 26a, is subtracted from a reference signal from a signal line (n) and similarly, passes through vertical and horizontal flare correction composite IIR filters 23, 24 from a signal line (m), is subtracted from the reference signal in a subtraction circuit 26b to obtain correcting signals of high frequency characteristic, respectively. A selector 31 is disposed at a CPU address side and the data from the CPU is written in a prescribed address in a RAM 32 during an image blanking period through a buffer 33. During the image period, the selector 31 is disposed to an input side and the data multiplied by a coefficient through a buffer 34 is read and fed as an output of a factor circuit.
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