| 摘要 |
A signal processing device (500) that processes sharpening of an image with respect to an input signal (SR) that represents the image and outputs an output signal (SO) that represents the sharpened image includes an oversampler (200) that generates an oversampled signal (S200) by interpolating a signal in order to increase a sampling frequency with respect to in input signal (SR), and a sharpening processing unit (100) to which the oversampled signal (200) is inputted and which generates a sharpened signal (S100) which is nonlinearly monotonically increased over a wide range high band frequency components in the oversampled signal (S200), and the sharpened signal (S100) is outputted as the output signal (SO). |
