l**p
发帖数: 474 | 1 I am doing teh hw now.....many q's on that |
b****o
发帖数: 66 | 2
Do you mean THIS NTSC (vs.PALvs.SECAM?)
Post more detail please.
【在 l**p 的大作中提到】
: I am doing teh hw now.....many q's on that
|
l**p
发帖数: 474 | 3 Yes. The question is discuss teh limitation and impact of some factor on the
quality of image reconstruction.
a. overlap of spectral sensiticities of teh color receptors in eys.
b. the color reproduction primaries must produce engery at multiple wavelength
c. gye is nonlinesr for transmittance vs. concentration
d. the block dye is to expensive
e. The NTSC performace gamma correction on RGB at TV station instead of YIQ in
TV reciever
for teh e. how this will introduce any errors.. teh image qulit
【在 b****o 的大作中提到】
:
: Do you mean THIS NTSC (vs.PALvs.SECAM?)
: Post more detail please.
|
b****o
发帖数: 66 | 4
? As far as I know, YIQ is from gamma corrected R'G'B' not RGB
【在 l**p 的大作中提到】
: Yes. The question is discuss teh limitation and impact of some factor on the
: quality of image reconstruction.
: a. overlap of spectral sensiticities of teh color receptors in eys.
: b. the color reproduction primaries must produce engery at multiple wavelength
: c. gye is nonlinesr for transmittance vs. concentration
: d. the block dye is to expensive
: e. The NTSC performace gamma correction on RGB at TV station instead of YIQ in
: TV reciever
: for teh e. how this will introduce any errors.. teh image qulit
|
c*i
发帖数: 31 | 5 The YIQ system is the color primary system adopted by National Television
System Committee (NTSC) for color TV broadcasting. The YIQ color solid is
made by a linear transformation of the RGB cube. Its purpose is to exploit
certain characteristics of the human eye to maximize the utilization of
a fixed bandwidth. The human visual systemis more sensitive to changes in
luminance than to changes in hue or saturation, and thus a wider bandwidth
should be dedicated to luminance than to color informati
【在 b****o 的大作中提到】
:
: ? As far as I know, YIQ is from gamma corrected R'G'B' not RGB
|
