Cuil - The World’s Biggest Search Engine

Welcome to Cuil—the world’s biggest search engine. The Internet has grown. We think it’s time search did too.

The Internet has grown exponentially in the last fifteen years but search engines have not kept up—until now. Cuil searches more pages on the Web than anyone else—three times as many as Google and ten times as many as Microsoft.

Rather than rely on superficial popularity metrics, Cuil searches for and ranks pages based on their content and relevance. When we find a page with your keywords, we stay on that page and analyze the rest of its content, its concepts, their inter-relationships and the page’s coherency.

Then we offer you helpful choices and suggestions until you find the page you want and that you know is out there. We believe that analyzing the Web rather than our users is a more useful approach, so we don’t collect data about you and your habits, lest we are tempted to peek. With Cuil, your search history is always private.

Cuil is an old Irish word for knowledge. For knowledge, ask Cuil.

prompt variable

Prompt variable

The value of the variable PROMPT_COMMAND is examined just before Bash prints each primary prompt.

If PROMPT_COMMAND is set and has a non-null value, then the value is executed just as if it had been typed on the command line.

In addition, the following table describes the special characters which can appear in the prompt variables:

\d The date, in “Weekday Month Date” format (e.g., “Tue May 26″).

\h The hostname, up to the first `.’.
\H The hostname.

\j The number of jobs currently managed by the shell.

\l The basename of the shell’s terminal device name.

\s The name of the shell, the basename of $0 (the portion following
the final slash).

\t The time, in 24-hour HH:MM:SS format.
\T The time, in 12-hour HH:MM:SS format.
\@ The time, in 12-hour am/pm format.

\u The username of the current user.

\v The version of Bash (e.g., 2.00)

\V The release of Bash, version + patchlevel (e.g., 2.00.0)

\w The current working directory.
\W The basename of $PWD.

\! The history number of this command.
\# The command number of this command.

\$ If the effective uid is 0, #, otherwise $.

\nnn The character whose ASCII code is the octal value nnn.

\n A newline.
\r A carriage return.
\e An escape character.
\a A bell character.
\\ A backslash.

\[ Begin a sequence of non-printing characters. This could be used to embed
a terminal control sequence into the prompt.

\] End a sequence of non-printing characters.

The command number and the history number are usually different: the history number of a command is its position in the history list, which may include commands restored from the history file, while the command number is the position in the sequence of commands executed.

After the string is decoded, it is expanded via parameter expansion, command substitution, arithmetic expansion, and quote removal, subject to the value of the promptvars shell option.

Coding Horror: Beyond JPEG

February 16, 2007
Beyond JPEG

It’s surprising that the venerable JPEG image compression standard, which dates back to 1986, is still the best we can do for photographic image compression. I can’t remember when I encountered my first JPEG image, but JPEG didn’t appear to enter practical use until the early 90’s.

There’s nothing wrong with JPEG. It’s a perfectly serviceable image compression format. But there are newer, more modern choices these days. There’s even a sequel of sorts to JPEG known as JPEG 2000. It’s the logical heir to the JPEG throne.

The promise of JPEG 2000 is higher image quality in much smaller file sizes, at the minor cost of additional CPU time. And since we always seem to have a lot more CPU time than bandwidth, this is a perfect tradeoff. You may remember my comparsion of JPEG compression levels entry from last year. Let’s see what happens when we take the two worst-looking images from that comparison– the ones with JPEG compression factor 40 and 50– and use JPEG 2000 to produce images of (nearly) the exact same size:

PLACA CARDBUS - SERIAL 1 PORT (CF-950) - PC Activ Baia Mare

PLACA CARDBUS - SERIAL 1 PORT (CF-950)
PLACA CARDBUS - SERIAL 1 PORT (CF-950)
Adauga in cos cumparaturi
Producator - GENERIC

COD - 5610
PRET - 102.3 RON

STOC - DA
Informeaza-ma la scaderea pretului
AFISEAZA CALCUL RATE INFORMATII RATE

HiBlog: HiRISE Team Blog » About

About

HiBlog is a place where operations staff can post live updates on HiRISE activities, news and events, discussion, information about the mission, their own jobs, and the wonderful images of Mars we’ll be getting.

HiRISE is the High-Resolution Imaging Science Experiment on board the Mars Reconnaissance Orbiter (MRO). The spacecraft is currently orbiting Mars approximately 13 times an (Earth) day. The Primary Science Phase (the main “mapping” phase of the mission) officially starts on November 8, 2006, and lasts for two (Earth) years.

HiROC (the HiRISE Operations Center) is where the day-to-day action takes place. Images are planned, the camera is commanded, data is downlinked, processed, and distributed. We’re located at the University of Arizona in Tucson, AZ.

We hope you enjoy this window into the life of HiRISE!

OpenJPEG library : an open source JPEG 2000 codec

What is OpenJPEG ?

The OpenJPEG library is an open-source JPEG 2000 codec written in C language. It has been developed in order to promote the use of JPEG 2000, the new still-image compression standard from the Joint Photographic Experts Group (JPEG). In addition to the basic codec, various other features are under development, among them the JP2 and MJ2 (Motion JPEG 2000) file formats, an indexing tool useful for the JPIP protocol, JPWL-tools for error-resilience, a Java-viewer for j2k-images, …
Who can use the library ?

Anybody. As the OpenJPEG library is released under the BSD license, anybody can use or modify the library, even for commercial applications. The only restriction is to retain the copyright in the sources or the binaries documentation.
Who is developing the library ?

The library is developed by the Communications and Remote Sensing Lab (TELE), in the Université Catholique de Louvain (UCL), and CNES with the support of the CS company. The JPWL module is developped and maintained by the Digital Signal Processing Lab (DSPLab) of the University of Perugia, Italy (UNIPG). As our purpose is to make OpenJPEG really useful for those interested in the image compression field, any feedback/advices are obviously welcome ! We will do our best to handle them quickly.

Online IP Subnet Calculator

Subnet Calculator Subnet Calculator

JPEG 2000 implementation in Java

Java implementation of JPEG 2000
JPEG 2000 is the new still image coding standard resulting from a collaborative work between the International Telecommunication Union (ITU) and the International Organization for Standardization (ISO). The standardization process has been led by the Joint Photographic Experts Group (JPEG), also denominated ISO/IEC JTC1/SC29/WG1. JPEG 2000 actually corresponds to the nine following distinct parts:

* Part 1: Core coding system (Document ISO/IEC 15444-1 available on ISO web site).
* Part 2: Extensions.
* Part 3: Motion JPEG 2000.
* Part 4: Conformance testing.
* Part 5: Reference software.
* Part 6: Compound image file format.
* Part 8: JPSEC (JPEG 2000 images security).
* Part 9: JPIP (Interactivity and protocols).
* Part 10: JP3D (Volumetric coding).

An in-depth view of the JPEG 2000 coding standard is given in the JPEG 2000 Workshop Proceedings from the VCIP conference 2003. Please click here to order the workshop proceedings.

JJ2000

JJ2000 is the Java reference implementation (part 5) of JPEG 2000. This project was the result of a partnership between EPFL, Canon Research France and Ericsson. It ended in September 2001 with a complete implementation of the normative parts of the JPEG 2000 core coding system (part 1).

The JJ2000 website provides, at one hand, with some documents, papers and tutorials on JPEG 2000 and, at the other hand, with a JPEG 2000 codec. Both source-code and binaries are available for download. The last official release of the codec was version 4.1.
Download JJ2000 version 4.1
Unix Archive (*.tar.bz2) Windows Archive (*.zip)
Source code (322K) Source code (678K)
Binaries (451K) Binaries (470K)
Javadoc documentation (313K) Javadoc documentation (887K)

Installation and usage instructions
JP2 file format
Complete JP2 file format support:

A minimal JPEG 2000 decoder simply handles JPEG 2000 part 1 codestreams. However a codestream only contains compressed data and is not able to carry side-information such as intellectual property rights or color-spaces for correct display. For such cases, the JPEG 2000 standard defines a minimal file format, denominated as JP2, that encapsulates JPEG 2000 codestreams, whilst providing room for storing application specific data (i.e. metadata).

The last official JJ2000 codec (version 4.1) does not fully support this file format and is, for instance, not able to handle palletized images or restricted ICC profiles defined in JP2.

For a complete support of the JP2 file format, you will have to use the Eastman Kodak’s patch. This patch was originally developed for JJ2000 4.1 and is now part of the JJ2000 5.1 and later versions.
JJ2000 version 5.1:
This is a non-official version of the JJ2000 codec, developed from JJ2000 version 4.1 and providing with few bug fixes, partial decoding and complete JP2 support at the decoding side.
Download JJ2000 version 5.1
Unix Archive (*.tar.bz2) Windows Archive (*.zip)
Source code (357K) Source code (772K)
Binaries (583K) Binaries (598K)
Javadoc documentation (404K) Javadoc documentation (1.2M)

Installation and usage instructions
Graphical User Interface:

This tool is a graphical front-end to the (command-line driven) JJ2000 5.1 codec. It is developed by the Swiss Federal Institute of Technology (EPFL) in the framework of the 2KAN European project.

The GUI is written in pure Java (1.4) and intends to provide with a more intuitive access to most of JJ2000’s command line options (See the readme file for more details). Furthermore is embedded, for testing purpose, a security module that implements the EPFL’s technology proposal based on document [1] and currently discussed in JPEG 2000 part 8.
Download GUI version 1.5b
Unix Archive (*.tar.bz2) Windows Archive (*.zip)
Source code (734K) Source code (1.4M)
Binaries (446K) Binaries (444K)

Installation and usage instructions
Links:

* JJ2000 - Java implementation of JPEG 2000.
* JPEG - Joint Photographic Experts Group.
* ISO - International Organization for Standardization.
* ITU - International Telecommunication Union.

-Dsun.java2d.noddraw=true