Refers to the brightness information within a video signal, and is the same as " Luminence". (see also CHROMA or CHROMINANCE, COMPOSITE VIDEO and Y/C.
The brightness component of a color video image (also called the grayscale, monochrome, or black-and-white component). Nonlinear luminance. The standard luma signal is computed from nonlinear RGB as Y' = 0.299 R' + 0.587 G' + 0.114 B'.
Signal carrying the information about the brightness of TV picture. Usually produced by combination of the primary color signals R, G and B, e. g. for NTSC, PAL and SECAM systems: Y = 0. 299*R + 0. 587*G +0. 114*B.
Short for luminance. A value describing the brightness of a video image. A luminance channel is a grayscale image showing the range of brightness across the whole clip.
The brightness portion of a video signal ("Y").
Often referred to as Luminance or light intensity in a video signal.
The luminance or lightness is the measurement of the intensity of light in a colour. Corresponds to the Y value in YUV colourspace. (More)
the brightness of a color, used in both hsl and yuv color model.
The NTSC or PAL video signal contains two pieces that make up what you see on the screen: the black and white (luma) and the color part (Chroma)
The monochrome or black-and-white portion of a video signal. This term is sometimes incorrectly called "luminance," which refers to the actual displayed brightness.
The photometric radiance of a light source. The luma signal represents brightness in a video picture. Luma is any value between black and white and is abbreviated as "Y". (See Chroma.)
As applied to video signals, luma represents the brightness in an image (the "black and white" or achromatic portion of the image). Luma is typically paired with chroma. Luma represents the achromatic image without any color, while the chroma components represent the color information.