发明名称 |
Color video signal processing device for enhancing at least one of a plurality of primary color signal components output from a color image pickup apparatus |
摘要 |
A color video signal processing device for a color image pickup apparatus which allows the saturation of a particular primary color to be enhanced with a good S/N ratio and without affecting the other colors. The image pickup apparatus generates a multiplex color signal which is made up of a low frequency range signal containing all the three primary color signal components and a high frequency range carrier signal modulated with first and second primary color signal components, which are predetermined by the colors of a color stripe filter installed in the image pickup apparatus, and in turn these signals and processed and transformed generally to three primary color video signals and a luminance signal. The low frequency range and high frequency range signals are separated from the color multiplex signal. The separated high frequency range signal contains a fundamental component and a harmonic component. The fundamental component is subjected to envelope detection. The signal level of at least one of the separated low frequency range signal and the envelope-detected signal is adjusted such that a third primary color signal component absent in the high frequency range signal is introduced into a difference signal produced by subtraction of the envelope-detected signal and the low frequency range signal.
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申请公布号 |
US4630107(A) |
申请公布日期 |
1986.12.16 |
申请号 |
US19840598642 |
申请日期 |
1984.04.10 |
申请人 |
VICTOR COMPANY OF JAPAN, LIMITED |
发明人 |
TAKANASHI, ITSUO;NAKAGAKI, SHINTARO;KURIYAMA, TAKASHI |
分类号 |
H04N9/64;H04N9/04;H04N9/07;(IPC1-7):H04N9/083;H04N9/73 |
主分类号 |
H04N9/64 |
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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