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[[Image:YDbDr components.jpg|right|thumb|An image along with its <math>Y</math>, <math>D_B</math> and <math>D_R</math> components.]]
Today I am sharing a dark experience with we as I am from this darkness today. Whoa! Google Chrome has crashed was the disaster that struck on me early this morning. My blood flow seemed to stop for a limited minutes. Next I regained my senses and decided to fix Chrome crash.<br><br>Google Chrome crashes on Windows 7 by the corrupted cache contents and problems with the stored browsing information. Delete the browsing data and obvious the contents of the cache to solve this issue.<br><br>Over time your disk may moreover receive fragmented. Fragmentation causes a computer to slow down because it takes windows much longer to obtain a files place. Fortunately, the PC has a built inside disk defragmenter. You are able to run this program by clicking "Start" - "All Programs" - "Accessories" - "System Tools" - "Disk Defragmenter". We may now have the choice to choose which drives or partition you need to defragment. This action may take we certain time thus it's advised to do this on a regular basis so because to avoid further fragmentation and to speed up a windows XP computer.<br><br>Windows mistakes will be caused by any number of reasons, but there's almost always one cause. There's a hidden piece of the system that is responsible for creating 90% of all Windows errors, and it's called the 'registry'. This really is the central database for a system plus is where a computer shops all its program files and settings. It's a especially important part of Windows, that is should be able to function. However, it's equally 1 of the largest causes of issues on a PC.<br><br>The 2nd step to fixing these mistakes is to utilize a system called a "[http://bestregistrycleanerfix.com/tune-up-utilities tuneup utilities 2014]" to scan by the computer and fix some of the registry errors that may equally be leading to the error. A registry cleaner is a software system that may scan by the computer and repair any of the problems that Windows has inside, allowing your computer to "remember" all of the settings it has when it loads up. Although the registry is continually being selected to aid load up a large amount of programs on your PC, it's continually being saved incorrectly - leading to a large number of mistakes to be formed. To fix this problem, it's suggested we download a registry cleaner within the Internet plus install it on the Pc, allowing Windows to run smoother again.<br><br>The main reason why I couldn't make my PC run faster was the system registry and it being fragmented. So software to defragment or clean the registry are needed. Such software are called registry cleaners. Like all alternative software, there are paid ones plus free ones with their blessings and disadvantages. To choose amongst the 2 is the user's choice.<br><br>Across the top of the scan results display page we see the tabs... Registry, Junk Files, Privacy, Bad Active X, Performance, etc. Every of these tabs will show we the results of that area. The Junk Files are primarily temporary files such as internet data, images, internet pages... And they are just taking up storage.<br><br>If you wish to have a computer with fast running speed, you'd better install a superior registry cleaner to wash the useless files for we. As long as you take care of your computer, it usually keep in good condition.
'''YDbDr''', sometimes written YD<sub>B</sub>D<sub>R</sub>, is the [[colour space]] used in the [[SÉCAM]] analog terrestrial colour [[television]] broadcasting standard, which is used in [[France]] and some countries of  the former [[Eastern Bloc]]. It is very close to [[YUV]] ([[PAL]]) and its related colour spaces such as [[YIQ]] ([[NTSC]]), [[YPbPr]] and [[YCbCr]].
 
YDbDr is composed of three components - <math>Y</math>, <math>D_B</math> and <math>D_R</math>. <math>Y</math> is the [[Luminance (video)|luminance]], <math>D_B</math> and <math>D_R</math> are the [[chrominance]] components, representing the red and blue colour differences<!--from Y-->.
 
== Formulas ==
 
The three component signals are created from an original RGB (red, green and blue) source. The weighted values of <math>R</math>, <math>G</math> and <math>B</math> are added together to produce a single <math>Y</math> signal, representing the overall brightness, or luminance, of that spot. The <math>D_B</math> signal is then created by subtracting the <math>Y</math> from the blue signal of the original RGB, and then scaling; and <math>D_R</math> by subtracting the <math>Y</math> from the red, and then scaling by a different factor.
 
These formulae approximate the conversion between the [[RGB]] colour space and YDbDr.
:<math>\begin{align}
R, G, B, Y &\in \left[ 0, 1 \right]\\
D_B, D_R &\in \left[ -1.333, 1.333 \right]\end{align}</math>
From RGB to YDbDr:
:<math>\begin{align}
Y  &= +0.299 R +0.587 G +0.114 B\\
D_B &= -0.450 R -0.883 G +1.333 B\\
D_R &= -1.333 R +1.116 G +0.217B\\
\begin{bmatrix} Y \\ D_B \\ D_R \end{bmatrix} &=
\begin{bmatrix} 0.299 & 0.587 & 0.114 \\
-0.450 & -0.883 & 1.333 \\
-1.333 & 1.116 & 0.217 \end{bmatrix}
\begin{bmatrix} R \\ G \\ B \end{bmatrix}\end{align}</math>
From YDbDr to RGB:
:<math>\begin{align}
R &= Y +0.000092303716148 D_B -0.525912630661865 D_R\\
G &= Y -0.129132898890509 D_B +0.267899328207599 D_R\\
B &= Y +0.664679059978955 D_B -0.000079202543533 D_R\\
\begin{bmatrix} R \\ G \\ B \end{bmatrix} &=
\begin{bmatrix} 1 & 0.000092303716148 & -0.525912630661865 \\
1 & -0.129132898890509 & 0.267899328207599 \\
1 & 0.664679059978955 & -0.000079202543533 \end{bmatrix}
\begin{bmatrix} Y \\ D_B \\ D_R \end{bmatrix}\end{align}</math>
 
You may note that the <math>Y</math> component of YDbDr is the same as the <math>Y</math> component of YUV. <math>D_B</math> and <math>D_R</math> are related to the <math>U</math> and <math>V</math> components of the [[YUV]] colour space as follows:
:<math>\begin{align}
D_B &= + 3.059 U\\
D_R &= - 2.169 V\end{align}</math>
There is also a variety of the [[PAL]] broadcasting standard, [[PAL#PAL-N|PAL-N]], that uses the YDbDr colour space.
 
==References==
*Shi, Yun Q. and Sun, Huifang ''Image and Video Compression for Multimedia Engineering'', CRC Press, 2000 ISBN 0-8493-3491-8
 
==See also==
*[[YUV]] - related colour system
*[[PAL#Technical details]] - some information on PAL-N
 
{{Color space}}
 
[[Category:Color space]]

Revision as of 23:16, 27 February 2014

Today I am sharing a dark experience with we as I am from this darkness today. Whoa! Google Chrome has crashed was the disaster that struck on me early this morning. My blood flow seemed to stop for a limited minutes. Next I regained my senses and decided to fix Chrome crash.

Google Chrome crashes on Windows 7 by the corrupted cache contents and problems with the stored browsing information. Delete the browsing data and obvious the contents of the cache to solve this issue.

Over time your disk may moreover receive fragmented. Fragmentation causes a computer to slow down because it takes windows much longer to obtain a files place. Fortunately, the PC has a built inside disk defragmenter. You are able to run this program by clicking "Start" - "All Programs" - "Accessories" - "System Tools" - "Disk Defragmenter". We may now have the choice to choose which drives or partition you need to defragment. This action may take we certain time thus it's advised to do this on a regular basis so because to avoid further fragmentation and to speed up a windows XP computer.

Windows mistakes will be caused by any number of reasons, but there's almost always one cause. There's a hidden piece of the system that is responsible for creating 90% of all Windows errors, and it's called the 'registry'. This really is the central database for a system plus is where a computer shops all its program files and settings. It's a especially important part of Windows, that is should be able to function. However, it's equally 1 of the largest causes of issues on a PC.

The 2nd step to fixing these mistakes is to utilize a system called a "tuneup utilities 2014" to scan by the computer and fix some of the registry errors that may equally be leading to the error. A registry cleaner is a software system that may scan by the computer and repair any of the problems that Windows has inside, allowing your computer to "remember" all of the settings it has when it loads up. Although the registry is continually being selected to aid load up a large amount of programs on your PC, it's continually being saved incorrectly - leading to a large number of mistakes to be formed. To fix this problem, it's suggested we download a registry cleaner within the Internet plus install it on the Pc, allowing Windows to run smoother again.

The main reason why I couldn't make my PC run faster was the system registry and it being fragmented. So software to defragment or clean the registry are needed. Such software are called registry cleaners. Like all alternative software, there are paid ones plus free ones with their blessings and disadvantages. To choose amongst the 2 is the user's choice.

Across the top of the scan results display page we see the tabs... Registry, Junk Files, Privacy, Bad Active X, Performance, etc. Every of these tabs will show we the results of that area. The Junk Files are primarily temporary files such as internet data, images, internet pages... And they are just taking up storage.

If you wish to have a computer with fast running speed, you'd better install a superior registry cleaner to wash the useless files for we. As long as you take care of your computer, it usually keep in good condition.

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