A Novel Data Hiding Method for Two-Color Images by Pan, Wu

By Pan, Wu

Show description

Read Online or Download A Novel Data Hiding Method for Two-Color Images PDF

Best organization and data processing books

The Easy Guide to Data and Voice Networking

Here is a robust candidate for an important observe for the twenty first Century. The be aware is Convergence. it will be significant since it will lead to the most refined, but profound alterations in our smooth lifestyle. nearly given that its invention, the phone has been a regular piece of kit. we're used to seeing one on each table in a firm and not less than one in each domestic.

Key Technologies for Data Management: 21st British National Conference on Databases, BNCOD 21, Edinburgh, UK, July 7-9, 2004. Proceedings

This yr marked the arriving of age of the British nationwide convention on Databases with its twenty first convention held at Heriot-Watt college, Edinburgh, in July 2004. To mark the get together the final subject matter of the convention used to be “When info Is Key”, reflecting not just the conventional key offered on a twenty first birthday, but in addition the ev- turning out to be significance of digital info administration in each point of our sleek lives.

Virtualization Solutions from Desktop to the Datacenter

If you've got by no means used a home windows Server platform, this publication will help.

For a person very accustomed to the home windows Server platform, and looking out to benefit extra approximately Server 2008, i discovered this ebook to be too excessive point to be important for any sensible uses.

Things you won't find:
Information highlighting new good points to home windows 2008 (for directors of 2003)
Security top practices / recommendations

You will although discover a stable variety of step by step directions, regrettably that suppose like they have been written for somebody who hasn't ever used a working laptop or computer before.

A nice instance of what you will discover is whatever like this step by means of step:
For area clients, you outline authorised brand workstations through following those steps:
1. Open the user's houses conversation field in lively listing clients and pcs after which click on Account tab
2. Open the Logon Workstations conversation field through clicking go browsing To.
3. opt for the next pcs as proven in determine eleven. 6
4. variety the identify of the authorised notebook after which click on upload. Repeat this method to specify extra workstations
5. if you happen to make a mistake, decide upon the inaccurate access after which click on Edit or eliminate as appropriate.

For anything that may be a "pocket" consultant, there's a lot of filler (like the laughable step five above) and dialogue of themes which a person administrating a server should still already be aware of (e. g. disk formatting, folder consumer permissions, and so on) and do not belong in a "pocket consultant".

Furthermore, the publication does have a few wrong statements, for instance, it says that home windows Server internet purely helps 2GB of RAM. It truly helps 32GB. 2GB used to be a Server 2003 restrict [. .. ]

Advances in Database Technology - EDBT 2004: 9th International Conference on Extending Database Technology, Heraklion, Crete, Greece, March 14-18, 2004

The ninth foreign convention on Extending Database know-how, EDBT 2004, was once held in Heraklion, Crete, Greece, in the course of March 14–18, 2004. The EDBT sequence of meetings is a longtime and prestigious discussion board for the trade of the newest learn leads to information administration. Held each years in an enticing eu situation, the convention offers exact opp- tunities for database researchers, practitioners, builders, and clients to discover new rules, concepts, and instruments, and to interchange studies.

Extra info for A Novel Data Hiding Method for Two-Color Images

Example text

However, such noises can be useful in some cases, where unusual items or exceptions are major concerns. Examples are fraud detection, unusual usage patterns and remarkable response patterns. - 35 - The challenge is to distinguish the outliers from the errors. When performing data understanding phase, data cleaning and scrubbing is required. This step includes finding erroneous data and trying to fix them. Thus, the possibility to detect interesting differentiation might be diminished. On the other hand, if the incorrect data remained in the data sets, the accuracy of the model would be compromised.

Generic tasks of this phase include data organization, data collection, data description, data analysis, data exploration and data quality verification. At the end of the phase, the results of all above-mentioned tasks have to be reported. 3. Data Preparation As mentioned above, one of the major concerns in using data mining technique is the quality of data. The objective of this phase is to ensure that data sets are ready to be mined. The process includes data selection (deciding on which data is relevant), data cleaning (removing all, or most, incompleteness, noises and inconsistency), data scrubbing (cleaning data by abrasive action), data integration (combining data from multiple sources into standardized format), data transformation (converting standardized data into ready-to-be-mined and standardized format) and data reduction (removing redundancies and merging data into aggregated format).

The objective of this analysis is to separate data with similar characteristics from the dissimilar ones. The difference between clustering and classification is that while clustering does not require pre-identified class labels, classification does. That is why classification is also called supervised learning while clustering is called unsupervised learning. As mentioned above, sometimes it is more convenient to analyze data in the aggregated form and allow breaking down into details if needed.

Download PDF sample

Rated 4.43 of 5 – based on 11 votes