s terminal is also a very common terminal, its full name is separate video, also known as SUPER video. S-video Connection specification is a specification developed by the Japanese, s refers to the "separate (separation)", which separates the brightness and chroma from the output, avoiding the interference of brightness and chroma when the mixed video signal is output. The S-terminal is actually a five-core
Always keep the video data YUV, because different type definitions are derived from different companies based on the organization of their products, and derive a number of different YUV formulas.Broadly, YUV from the pixel organization in the form of dots, there are two: 1.planer states. 2.packet status.Planar Mode example: Y0y1 .... Yn u0u1 ... Um V0V1: VM,YUV three channels of continuous storage;Example of packet mode: Y0u0v0 + y1u1v1 + ... + YNUNVN,YUV three channels mixed storage.The planar
also based on the different types of residual data to choose, in-frame encoding macro block brightness DC coefficient (only for the 16x16 Prediction mode is valid) using a 4x4 matrix, chroma DC coefficients using a 2x2 matrix, for the other uses a 4x4 block to transform.
The use of integer-based spatial transformations can increase the computational speed (using only addition and displacement operations), but the use of integer transformation to the
A few years ago, when I was on a business trip by train, reading a book may be the only pastime. Now more people choose to use their laptops. However, in the general sense, a notebook is large and hard to operate because it is heavy, the battery endurance is insufficient, which often limits the use of passengers. The emergence of portable laptops effectively solves these problems. However, the most importan
, such as (for the 8x8 block boundary, the PIJ and Qij refers to the middle four rows, near the boundary of four columns, called Four-sam Ple part of a block boundary):
bs = 2: At least one 8x8 block on both sides of the boundary belongs to intra, and if the conditions of bs=2 are met, no bs=1 judgment is made; bs = 1: At least one 8x8 block has a non-0 residual coefficient, and the boundary is the TU boundary; BS = 1: The absolute difference of the motion vectors of the two blocks is gr
intra-frame prediction blocks were specified: 4*4, 8*8, and 16*16, and intra-frame prediction blocks for chroma components were based on 8*8 size blocks. The brightness blocks of the 4*4 and 8*8 sizes contain 9 predictive modes (vertical, horizontal, DC, lower left diagonal mode, right down diagonal mode, vertical right mode, horizontal down mode, vertical left mode, and horizontal up mode), while the 16*16-size brightness blocks and 8* The 8-size
The YUV color model is derived from the RGB model, which is characterized by the separation of luminance and chroma, which is suitable for the field of image processing.YCbCr model is derived from YUV model, applied to digital video, ITU-R BT.601 RecommendationThrough the above comparison can be determined that we are in h.264,mpeg and other coding standards in the YUV is actually ycbcr, we do not confuse the name.In order to reduce the amount of data
encodes bitstream, only supports i420, color space settings */int I_LEVEL_IDC; /* Settings for level values */int i_frame_total; /* Total number of encoded frames, default 0 *//*vui parameter Set video availability information Video normalization options */struct{/* They'll be reduced to be 0 int i_sar_height;int i_sar_width; /* Set aspect ratio */int I_overscan; /* 0=undef, 1=no overscan, 2=overscan over scan line, default "Undef" (not set), optional: Show (Watch)/crop (remove) */ /* See the f
direction is only half 4:4:4. For uncompressed 8-bit quantization images, a macro pixel consisting of two pixels adjacent to each other horizontally requires 4 bytes of memory (2 bytes of brightness, two shades per 1 bytes). .The following four pixels are: [Y0 U0 V0] [Y1 U1 V1] [Y2 U2 V2] [Y3 U3 V3]The stored stream is: Y0 U0 Y1 V1 Y2 U2 Y3 V3Mapped pixel points: [Y0 U0 V1] [Y1 U0 V1] [Y2 U2 V3] [Y3 U2 V3](3) YUV 4:1:1The chroma sampling of the 4:1:1
the horizontal and vertical component of the motion vector;
Except for the case when the motion vector have an integer
Value, fractional sample interpolation is used to generate the
Prediction samples for Noninteger sampling positions. As in
H.264/mpeg-4 AVC, HEVC supports motion vectors with
Units of one quarter of the distance between Luma samples.
In addition to the MV with integer values, the pixel interpolation is used to generate the predicted pixels for neighboring pixel positions.
Lik
A 2012 study by Harris Interactive shows that while smartphones and tablets are starting to become popular in companies, 26% of employees still use office computers to handle business. 61% of them store critical data, including company and customer sensitive information, on their systems.
Given the rising number of notebook thefts, it is under great pressure to ensure the safety of corporate laptops. However, the design and implementation of an effec
= (g-b)/delta; Between Yellow Magentaelse if (G = = max)H = 2 + (B-R)/delta; Between Cyan YellowElseH = 4 + (R-G)/delta; Between Magenta CyanH *= 60; Degreesif (H H + = 360;}YUV Color SpaceYUV (also known as YCRCB) is a color coding method (belonging to PAL) adopted by the European television system. In modern color TV system, three-tube color camera or color CCD camera is usually used to take the image, and then the obtained color images are separated and corrected to get RGB, then the lumi
many factors that affect the perceived color of the human eye, the perfect color illusion, or the dress that messes with the Internet. The point is that the human eye can be manipulated very well relative to the color to be recognized.Quality is a form of lossy compression, whereas JPG uses another method: the color model . A color space represents a set of colors, and its color model represents how the mathematical formula indicates the color (RGB, four separations CMYK).The great thing about
are: [Y0 U0 V0] [Y1 U1 V1] [Y2 U2 V2] [Y3 U3 V3]The stored stream is: Y0 U0 V0 Y1 U1 V1 Y2 U2 V2 Y3 U3 V3(2) YUV 4:2:2The sampling rate of each chromatic channel is half that of the luminance channel, so the chromaticity sampling rate in the horizontal direction is only half 4:4:4.For uncompressed 8-bit quantization images, a macro pixel consisting of two pixels adjacent to each other horizontally takes up 4 bytes of memory.The following four pixels are: [Y0 U0 V0] [Y1 U1 V1] [Y2 U2 V2] [Y3 U3
What is a CSS Filter?
CSS Filter is an extension subset of conventional CSS. It can make the application objects (text, images, HTML elements...) produce blur, transparency, edge light, and other effects similar to those in Photoshop. The rational use of the CSS Filter can reduce the number of images used by the web page to reduce the size of the web page. You can also directly modify the filter parameters in CSS or use js to dynamically modify the CSS Filter parameters, to quickly update the
can select the "client" as the primary selection.
4. Share.
You can use all of the above. The method is to open "start"> "program"> "accessories"> "communication"> "Direct cable connection" with the mouse on the host and client computers respectively ", select "listener" for the host and "connection" for the client host. After detecting your username, that is, your password, you must enter the "host name" of the other party, that is, the "computer name" we introduced above for the computer "),
With the rich economy, the connection settings of two laptops have become a new problem in many cases. How can we effectively set them? Here we will summarize the four methods.
Many of my friends will ask how to connect two laptops wirelessly. For this reason, I have summarized several previous methods and listed them here, which one is suitable for your use? I think each of them has its own hardware charac
Use rechargeable batteries
Using rechargeable batteries is one of the advantages of laptops relative to desktops, which can be used in a wide range of environments with laptops. The first battery to be released was Ni-CD battery (NiCd), but this kind of battery has "the memory effect", each charge must discharge before, the use is very inconvenient, soon was replaced by Ni-MH battery (NiMH), NiMH not only
Traveling with laptops to other places is common. However, when many people share a hotel room, we may often encounter the trouble of having access to the Internet at the same time, this is because most hotel rooms only provide customers with one Internet connection. That is to say, at a certain time, only one customer can use the only network interface in the room to surf the Internet, even if other customers carry their
Wireless Internet access is the current trend, and wireless network interfaces are also essential fashion. Today's rapid development, wireless network interfaces are also a wide variety of dazzling. If you still don't know what kinds of wireless NICs are available today, please read the following article.
When 802.11n is officially approved, low-configuration laptops may only be compatible with 802.11a, 802.11b, or 802.11 GB, but cannot meet the new n
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