photo

Lester


Actif depuis 2013

Followers: 0   Following: 0

Message

Student

Statistiques

  • Thankful Level 1
  • First Answer

Afficher les badges

Feeds

Afficher par

Question


I require a code for embedding and extraction of a watermark from an image (DCT Domain). Please help.
we want to - embed a watermark - extract d watermark - prevent it from attacks - provide additional functionalities like sec...

presque 12 ans il y a | 3 réponses | 0

3

réponses

Question


How to convert invisible watermark to visible watermark? Please help
clc; clear all; start_time=cputime; k=50; blocksize=8; file_name1='C:\Users\Public\Pictures\Sample Pic...

presque 12 ans il y a | 2 réponses | 0

2

réponses

Réponse apportée
Problem in extracting the watermark ! !
sir , may i know what are the steps followed for embedding and extracting the image in DCT domain in the above code....???

presque 12 ans il y a | 0

Question


i have a code for dct watermarking wherin the watermark is getting embedded but the watermark is an invisible watermark.....wat changes do i hve to make to make the watermark visible?
clc; clear all; start_time=cputime; k=50; blocksize=8; file_name1='C:\Users\Public\Pictures\Sample Picture...

presque 12 ans il y a | 1 réponse | 0

0

réponse

Réponse apportée
This is a dct code on watermark embedding. Please fix it
How do you go about embedding the watermark in the color planes? I didn't get you sir

presque 12 ans il y a | 0

Question


This is a dct code on watermark embedding. Please fix it
The error I'm encountering is this --> Warning: Size vector should be a row vector with integer elements. > In wa...

presque 12 ans il y a | 2 réponses | 0

2

réponses

Réponse apportée
I require a code for embedding and extraction of a watermark from an image (DCT Domain). Please help.
Very grateful sir...but the code you have provided is LSB watermarking..what about the code in the DCT domain? is it the same?

environ 12 ans il y a | 0