The color display will use both chrominance and luminance information. A black and white display uses(74). A: neither of the two components B: the chrominance component C: the luminance component D: both of the twocomponents

PERORATION: SPEECH :: A: epic: strophe B: luminance: umbrage C: epilogue: novel D: rhythm: poem E: image: picture

PERORATION: SPEECH:: A: (A) epic: strophe B: (B) luminance: umbrage C: (C) epilogue : novel D: (D) rhythm : poem E: (E) image: picture

使用Set Matte特效时，下面哪些可以被设为Matte（蒙板）（） A: Alpha Channel B: Luminance C: Hue D: Lightness

The YUV color space is composed of a luminance signal Y and two color difference signals and chrominance signals U and V. The separation of Y, U and V is to realize the color signal received by black and white TV. ( )

The YUV color space is composed of a luminance signal Y and two color difference signals and chrominance signals U and V. The separation of Y, U and V is to realize the color signal received by black and white TV. ( ) A: 正确 B: 错误

在键出图象的灰度值的同时保持它的色彩值的是（） A: Alpha通道控制 B: “Luminance”明度键抠像 C: 图像蒙板 D: 轨道蒙板