YUV

Reading: Y u buoy
Field:
Imaging > expression of color > YU

The luminance signal (Y) with, difference of the luminance signal and the blue component (U), the type which displays color with three items of information difference (v) of the luminance signal and the red component. The eye of the human making use of the character which change of color compared to is sensitive to the change of brightness, by the fact that many data quantities are allotted with brightness information, it can obtain the data compression ratio which with deterioration of little picture quality is high. It is used for the compressed technology of television and JPEG and MPEG etc. It indicates in the display of the personal computer in, it is necessary to convert to RGB type.

YUV12

Reading: The y u buoy it is, in the [chi] -
Field:
Imaging > expression of color > YUV12

At one of the YUV systems which are expression method of color, per 1 pixels the system which expresses lust information at the data quantity of 12 bits. General term of YUV411 system and YUV420 system.

As for YUV411 system, from midst of 4 pixels of 2x2 brightness information (Y) 4 samples, difference of brightness and the blue component (U), the system which 1 samples takes difference (v) of brightness and the red component respectively. This system is used in DV and MPEG.

As for YUV420 system, from 2 pixels of the first line of 4 pixels of 2x2 the U component 1 samples, from 2 pixels of the following line the system which V component 1 samples is taken. 8 bit quantization because when it does with 4 pixels 48 bits, per 1 pixels it reaches the data quantity of 12 bits is called YUV12.

At one of the YUV systems which are expression method of color, per 1 pixels the system which expresses lust information at the data quantity of 12 bits.

From midst of 4 pixels of 2x2 brightness information (Y) 4 samples, difference of brightness and the blue component (U), the system which 1 samples takes difference (v) of brightness and the red component respectively.

With YUV420 which because when it does with 4 pixels 48 bits, per 1 pixels it reaches the data quantity of 12 bits, expresses 8 bit quantization similarly at 12 bits there is many a thing which is named generically “YUV12”.

It is used in DV and MPEG.

YUV420

Reading: The y u buoy it is - roundly
Field:
Imaging > expression of color > YUV420

At one of the YUV systems which are expression method of color, per 1 pixels the system which expresses lust information at the data quantity of 12 bits.

As for YUV420 system, from midst of 4 pixels of 2x2 brightness information (Y) 4 samples, from 2 pixels of the first line difference of brightness and the blue component (U) 1 samples, from 2 pixels of the following line the system which difference (v) of brightness and the red component 1 samples is taken.

With YUV411 which because when it does with 4 pixels 48 bits, per 1 pixels it reaches the data quantity of 12 bits, expresses 8 bit quantization similarly at 12 bits there is many a thing which is named generically “YUV12”.

YUV422

Reading: The y u buoy it is - -
Field:
Imaging > expression of color > YUV422

One of the YUV systems which are expression method of color.

The case of sampling from 4 pixels of 2x2 brightness information (Y) 4 samples, difference of brightness and the blue component (U), the system which 2 samples takes difference (v) of brightness and the red component respectively.

8 bit quantization when it does with 4 pixels 64 bits, per 1 pixels it reaches the data quantity of 16 bits.

In the digital television this system is used.

YUV444

Reading: The y u buoy it is, it is, it is
Field:
Imaging > expression of color > YUV444

One of the YUV systems which are expression method of color.

The case of sampling, from horizontal direction 4 pixel, in each every pixel brightness information (Y), difference of brightness and the blue component (U), the system which 1 samples takes difference (v) of brightness and the red component respectively.

8 bit quantization when it does with 4 pixels 96 bits, per 1 pixels it reaches the data quantity of 24 bits.

YUV9

Reading: Y u buoy coming [yu] [u]
Field:
Imaging > expression of color > YUV9

At one of the YUV systems which are expression method of color, per 1 pixels the system which expresses lust information at the data quantity of 9 bits.

YUV12 compared to furthermore being something which decreases the data, from 16 pixels of 4x4 lust information only one the sample the system which is not done.

8 bit quantization because when it does per pixel it reaches 9 bits is called YUV9.