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Domanda


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...

oltre 11 anni fa | 3 risposte | 0

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Domanda


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...

oltre 11 anni fa | 2 risposte | 0

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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....???

oltre 11 anni fa | 0

Domanda


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...

oltre 11 anni fa | 0 risposte | 0

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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

oltre 11 anni fa | 0

Domanda


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...

oltre 11 anni fa | 2 risposte | 0

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Risposto
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?

quasi 12 anni fa | 0