Coloured Image , Copyright Protection

“COPYRIGHT PROTECTION OF COLORED IMAGES USING DIGITAL WATERMARKING” 

ABSTRACT 

 

      Analysis in digital knowledge hiding was first triggered by its potential use for copyright safety of multimedia knowledge exchanged in digital type. In this type of utility, normally termed digital watermarking, a code conveying some vital information in regards to the authorized knowledge proprietor, or the allowed customers of knowledge, is hidden inside the knowledge itself, as a substitute of being connected to the info as a header or a separate file. The necessity to fastidiously disguise the information inside the host knowledge is defined by the will to not degrade the standard of the host sign, and by the idea that it’s harder to take away the information wanted for copyright safety with out figuring out precisely the place it’s hidden.

      In our project we’re particularly coping with the digital coloured pictures as this subject has not been explored a lot and until date a lot of the work performed is anxious with the grey pictures.

      Thus we are able to conclude that the research of digital watermarking and this project are going to produce many fruitful leads to the very close to future for the human race within the subject of science and know-how which will probably be used for safety functions which is each physique’s want in as we speak’s world.

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SYNOPSIS 

 

Challenge Assertion:- 

 

     We’re implementing Watermarking Method for Copyright Safety of coloured pictures. On this we will probably be embedding a copyright message within the picture which is able to verify the authenticity of the authorized proprietor.

Sponsored By:- 

 

          Community Safety Options (India) Ltd. 

 

Know-how:- 

 

     On this project we’re utilizing “C” language for the coding on linux platform .The format of the picture getting used is PPM format.

      We may even be utilizing the ideas of DSF (bushes) for storing the sub bands. We will probably be utilizing some instruments resembling NetPBM library for numerous capabilities like changing jpeg format to PPM format and so on.

Temporary Challenge Desctiption:- 

 

      In our project we’re utilizing Discrete Wavelet Remodel (DWT) approach for embedding and extraction of the watermark.DWT is the latest approach which has many benefits over the earlier methods like DCT , DFT and so on. 

The varied phases of the approach are as follows:-

1.      Signature Era: The mark is a sequence of pseudo random numbers     

 

            that are generated utilizing a seed which in flip is calculated on the premise of the   

            textual message to be embedded. 

 

2.      Decomposition: The host picture is decomposed to acquire a multi-resolution

      approximation picture utilizing three stage DWT.

3.      Coefficient Choice: The coefficients of LL sub band are chosen.

4.      Embedding: The watermark is embedded within the approximation picture(LL sub

            band ) utilizing the additive embedding  system:

         F`(i,j) = F_imply + ( F(i,j) – F_imply ) * ( 1 + α * w_i ) 

 

       The place,

                  F_imply  is the common worth of all of the coefficients.

                  α  is weighting issue.

                  w_i is the watermark.

5.      Extraction: The blind watermark extraction is used which doesn’t want the              

 

            authentic picture. 

 

Platform:- 

      Linux Working techniques.

Software program & {Hardware} necessities :- 

      This project has the next s/w necessities:-

                                   *  Compiler for ‘C & C++’

                                   *  NetPBM package deal.

      This project has the next h/w necessities:-

                              *  Multimedia PC configuration

Title of the School: 

 

Challenge information: 

 

     (CTO Community Safety Options (India) Ltd) 

 

Contacts: