The video abduction action involves several processing steps. First the analog arresting is digitized by an analog-to-digital advocate to aftermath a raw, agenda abstracts stream. In the case of blended video, the luminance and chrominance are again separated; this is not all-important for S-Video sources. Next, the chrominance is demodulated to aftermath blush aberration video data. At this point, the abstracts may be adapted so as to acclimatize brightness, contrast, assimilation and hue. Finally, the abstracts is adapted by a blush amplitude advocate to accomplish abstracts in acclimation with any of several blush amplitude standards, such as RGB and YCbCr. Together, these accomplish constituted video decoding, because they "decode" an analog video architecture such as NTSC or PAL.
Special cyberbanking chip is appropriate to abduction video from analog video sources. At the arrangement akin this action is about performed by a committed video abduction card. Such cards generally advance video decoder chip circuits to apparatus the video adaptation process.
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