Video Signal Processing Device and Video Signal Processing Method
AssigneeKabushiki Kaisha Toshiba
InventorHirotoshi Miyazawa
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Abstract
According to one embodiment, an extraction module that extracts a high frequency component of a luminance signal, an acquisition module that acquires band histogram data according to amplitude levels with respect to one frame from the high frequency component of the luminance signal, a control module that applies gain control for contour correction processing based on a gain value provided from outside to the luminance signal, and a generation module that generates a gain value to be provided to the control module on the basis of the acquired band histogram data are included.
Claims9
A video signal processing device, comprising:
- an input module configured to receive a luminance signal;
- an extraction module configured to extract high frequency components from the luminance signal input to the input module;
- a band histogram acquisition module configured to acquire band histogram data according to amplitude levels with respect to one frame from the high frequency components of the luminance signal extracted by the extraction module;
- a control module configured to apply gain control for contour correction processing based on a gain value provided from outside to the luminance signal input to the input module;
- and
- a generation module configured to generate a gain value to be provided to the control module on the basis of band histogram data acquired by the band histogram acquisition module.
A video signal processing method comprising:
- inputting a luminance signal;
- extracting high frequency components from the input luminance signal;
- acquiring band histogram data according to amplitude levels with respect to one frame from the extracted high frequency components of the luminance signal;
- applying gain control for contour correction processing based on a gain value provided from outside to the input luminance signal;
- and
- generating a gain value for the gain control on the basis of the acquired band histogram data.
Dependencies are inferred from the claim text.