发明名称 |
Image display device, image pickup apparatus, and image display method that allow focus assistant display |
摘要 |
An image display device that is capable of checking a focusing operation at the time of shooting by a user easily even if a small-sized monitor is used. A luminance-signal extracting unit extracts a luminance signal from a video signal. An amplitude change calculating unit calculates an amplitude change component of the luminance signal extracted. An edge-signal extracting unit extracts an edge signal from the luminance signal extracted. An amplitude calculating unit calculates an amplitude of the edge signal extracted. An amplitude-ratio calculating unit calculates a ratio of the amplitude of the edge signal to the amplitude change component of the luminance signal. A color conversion unit converts the edge signal to add colors according to the calculation result. An adder unit adds the color-converted edge signal and the luminance signal. A display unit displays the video signal to which the color-converted edge signal is added. |
申请公布号 |
US8212916(B2) |
申请公布日期 |
2012.07.03 |
申请号 |
US20100891206 |
申请日期 |
2010.09.27 |
申请人 |
MATSUMOTO TOSHIYUKI;CANON KABUSHIKI KAISHA |
发明人 |
MATSUMOTO TOSHIYUKI |
分类号 |
G03B13/00 |
主分类号 |
G03B13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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