Ma JianEmail:[email protected]Published: 2009.09.22Update:2012.06.11The relevant content has been updated for the new progress of Pdftoy.1 Introduction2 theory3 implementationConversion of 3.1 MRC model3.1.1 Single layer DjVu3.1.2 3 Floor DjVu3.1.3 2-Layer DjVu (color text)3.2 Conversion of images3.2.1 JB2 Turn JBig23.2.2 IW44 turn JPEG 20003.2.3 JPEG vs. CCITT G4 Conversion3.3 Conversion of hidden text3.4 Conversion of the Directory3.5 Conversion of
I will sort out a batch of resources on G4, because there are not many such materials. It is also convenient to sort them out.
The most useful thing is the official Geant4 user's guide.
1. Search for physical process categories (G4 official documentation)
Http://geant4.cern.ch/support/proc_mod_catalog/index.shtml
G4 provides a large number of existing physical
Description
These format definitions are used to match the pixel format of the traditional PC's image frame buffer. Each pixel occupies 8, 16, 24, or 32 bits. This is the packed-pixel format, which means that each pixel is in the memory.
When one of these formats is used, the driver should report the color space to v4l2_colorspace_srgb.
Table2-1. Packed RGB image formats
IdentifierCode
Byte 07654/3210
Byte 1
Byte 2
Byte 3
V4l2_pix_fmt_rgb332'Rgb1'
B1 B0 G2
opening and closing principle is the most basic principle, the first 5 principles is its concrete form, the opening and shutting principle is their interface.ibook as an interface, there are three methods, and the novel Novelbook is a concrete implementation of the class, is the general name of all novels, bookstore refers to the bookstore.Public interface IBook {public string getName (), public int getprice (), public string Getauthor ();}public cla
Defined:
A software entity such as classes, modules, and functions should be open to extensions and closed for modification.
The definition of the opening and closing principle has clearly told us that software entities should be open to extensions and closed to modifications, meaning that a software entity should implement changes through extensions rather than modifying existing code to achieve change. So what is a software entity? Software entities include the following sections:
A module in
The simplest is the static proxy method, which is the proxy mode, here is not more verbose. Focus on the dynamic agent of the JDK and the dynamic agent of Cglib. First of all, the JDK needs to be proxied, the class needs to have interfaces, otherwise it will not be implemented Package Proxy.dynamic;public interface IBook {void Add ();} The classes that implement the interface are as follows Package Proxy.dynamic;public class Book implements
lower 5-bit of the first byte of the converted RGB565As far as rgb565->rgb888 is concerned:RGB565 are stored in the following ways:R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B4 B3 B2 B1 B01. Take RGB565 first byte low 5 bit as RGB888 high 5 bit2. Take the lower 3 bits in the second byte of the RGB565, move it 5 bits to the left, as the high 5 bits of the RGB888 second byte3. Take the high 3 bits of the first byte of the RGB565 to move it to the right 3 bits, a
the unique unit method, the unique remainder distinct method is used to determine the number of cells that can be filled in. The unique unit method is used to determine the number of cells that can be filled in. In addition, the unique unit method is easy to understand.
Compared with the candidate number method, the unique remainder equals the explicit uniqueness method. Although the explicit uniqueness method is the simplest and easiest method to use in the Candidate number method, it is the o
on the top of the save key.In the tree structure, select the 1-generation members of each dimension, as the following table modifies the dimension's dimension Storage type and dimension Sort order two properties. Dimension Storage type is defined as whether the storage type is sparse (Sparse) or dense (dense); Dimension sort order defines the order in which dimensions are sorted in the outline after deployment. These two properties determine the physical structure and calculation order of the d
expand all other windows.
6. After the system is started ......
On a device with a power buttonThe power button displays the "shut down", "Sleep", and "reboot" buttons on the screen (see the next section ).CMD-Ctrl-power button force reboot. This method is not necessary and is not recommended because it may damage the data on the disk.CTRL-cmd-opt-power button for quick shutdown.CMD-power button to start the program debugging software (if installed in advance ). Earlier MAC (for example, Mac II
How does the HP ProBook 430 G4 Family pick up the latest version of the seventh generation I5? Let's look at this product.
HP ProBook 430 G4 using MG-Al alloy fuselage, a face also follow the design style of simple atmosphere, using metal matte technology, the central logo using bright surface treatment, not too monotonous.
The four corners of the fuselage are made of
int gx,gy;
The temp varialbe int g1,g2,g3,g4;
Double weight;
Double DTEMP,DTEMP1,DTEMP2;
Set the edge of the image for the Impossible demarcation Point for (x=0;xIn the above code, there are several if-else to be aware of. In the canny operator's paper proposed by John Canny, the non-maximum suppression is performed in 0, 90, 45, 1354 gradient directions, and each pixel gradient direction is replaced by this four direction in terms of simi
documents, are using Uidocumentinteractioncontroller. Use the "preview" method, such as HTML, TXT, Word, Excel, and so on. These can all be opened perfectly. But today I found out that Uidocumentinteractioncontroller can't open a local ibooks document in some way!Take a look at my question code:1 Uidocumentinteractioncontroller *controller = [Uidocumentinteractioncontroller interactioncontrollerwithurl: FILEURL]; 2 Controller. delegate = self ; 3 [Controller Presentprevi
instead of implementing classes when calling the lower layer. Once the lower layer changes significantly, the upper layer will not fluctuate much.Assume that the following scenarios are met:
Students
Public class student {public void read (honglou) {// traverse each row for (line: honglou. getlines) {// a line of James reads this. see (line) ;}} public class honglou {public list
At this time, James depends on a specific class of honglou. Once Xiaoming wants to read other books (using other imp
mode. It would be better if I could make the PDF continuous reading mode on the computer. Why do I have to simulate the entity book reading? TheseProgramDesigners have also entered a misunderstanding.You can also buy iBook or Kindle, which is another thing.
3) In terms of games, there is no special fun experience. I am also very pleased with the fact that there is much better experience than PSP in terms of operations and various aspects of the gam
Today, when I review the code, I found this macro definition:#define COLOR_TO_MTK_COLOR_SIMUL ((color >>) 0x1f) | (((color) >> Ten 0x3f) | ((color) >> 3) 0x1f)Do you know what this macro is for?After careful analysis, the original is to realize the conversion of RGB888 to RGB565, access to relevant information, found that there is a network of cattle writing Dongdong, here and you share.Talk about quantitative compression and quantification compensation.In color format conversion, often encou
Micro:bit comes with an interesting feature is the ability to generate music playback, today do a simple and practical case, with Micro:bit play Happy Birthday song. algorithm: Press the button A to show Happy birthday play D play D play E play D play G play F rest In order to play music, a buzzer or headset that works 3V can be connected to the Micro:bit Gnd and Pine0 feet, such as blocky program is as follows micropython program script is as follows: from microbit Import * import m
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