| 摘要 |
A processing apparatus emphasizes edges of a video signal which is applied thereto and non-linear relative to density or luminance levels adapted for the reproduction of a video signal. The processing apparatus includes a linear converter for converting the non-linear video signal into a linear video signal. The linear video signal is applied to an edge emphasizing unit to produce a linear edge-emphasized video signal. A non-linear converter is provided for applying non-linear processing to the linear edge-emphasized video signal, whereby a non-linear edge-emphasized video signal is achieved.
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