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  1. #21
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    III's Avatar
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    Matlab program

    I don't know how to exlain it more simply THE ONLY WAY TO GET TO THE LOW FREQUENCIES IS TO ZIGZAG THE DCT SPECTAR IN A ROW OR A COLUMNE READ THIS TUTORIAL ABOUT JPEG COMPRESSION AND I HOPE THIS CLEARS THINGS UP SOMEHOW the JPEG Tutorial

    i use cover image(600×800) and the watermark is (20×50)
    when i change the watermark o/p to me an error:
    ??? Error using ==> reshape
    To RESHAPE the number of elements must not change.
    if the coverimage(x*Y)~=pnsequence you'll have an error, it may not be a goog idea to implement a hibrid sceme, as the high corelation of the coverimage will destroy the caracteristics of the pn string m~=0; sigma~=1; So use eather the stamping or watermarking scheme not bouth;



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  2. #22
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    Re: Matlab program

    hi
    ok ok ok ok man....calm down!!!!!!!
    i got that.
    now i want to convert the gui to executable file when i make it i have this error:
    An error occurred in the callback : AAA('listbox1_CreateFcn',gcbo,[],guidata(gcb
    o))
    The error message caught was : Reference to unknown function or variable 'A
    AA' while evaluating expression.

    An error occurred in the callback : AAA('edit2_CreateFcn',gcbo,[],guidata(gcbo))

    The error message caught was : Reference to unknown function or variable 'A
    AA' while evaluating expression.

    An error occurred in the callback : AAA('edit1_CreateFcn',gcbo,[],guidata(gcbo))

    The error message caught was : Reference to unknown function or variable 'A
    AA' while evaluating expression.

    hope you can help me.....



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  3. #23
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    Matlab program

    What compiler are u using for the conversion lcc, gcc or msvc?

    Added after 26 minutes:

    I should also note that even tho the mcc compiler builds a windows executable in order to run that exe on a system that doesn't have matlab installed one would need the matlab runtime witch is rather large.



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  4. #24
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    Re: spatial domain watermarking schemes tutorials

    Quote Originally Posted by trylib View Post
    Contact abhishek.vnit on this forum..............he has the code ready!

    Hello everyone...

    Can anybody give me MATLAB code for (or help me to get one) "Digital Audio Watermarking using DWT (discrete Wavelet Transform) and SVD (Singular Value Decomposition)"...??

    My E-mail id: keshava.gn@gmail.com
    or just comment here...

    Other ways to get Audio Watermark is also ok... (Like: DCT etc if you don't know by DWT and SVD)...

    Thank you in advance...

    Waiting for reply,
    KESHAVA.G.N



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