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hemalatha


Actif depuis 2014

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audio enhancement technique to improve the audio quality
in audio steganography i hidden an image into audio file..so that am getting noise in stego audio.so i want to enhance my audio ...

presque 10 ans il y a | 1 réponse | 0

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Question


image hidden in audio...while retrieving i get some dots in the hidden image..help me
<</matlabcentral/answers/uploaded_files/25913/original%20imag.png>> <</matlabcentral/answers/uploaded_files/25914/retrieve%20...

presque 10 ans il y a | 1 réponse | 0

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how to segment audio signal ???
i take an audio that consist of ~7 lakhs values(single channel and 22050 sampling frequency) so that matlab can't process the au...

presque 10 ans il y a | 1 réponse | 0

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how can i find the coin value from the coin image??
if the coin image slightly changes its position means its area value to b changed in indian coins..so that how can i recognise t...

presque 10 ans il y a | 1 réponse | 0

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Question


adc code for 16khz wav file.
U=256; % range signal n=7;% number of bits q=U/(2^n-1); y=abs(wavread('C:\Users\hp\Desktop\ee.wav')); a=fix(y/q); from t...

presque 10 ans il y a | 1 réponse | 0

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how to convert the float into binary ?? the float values are audio samples and also the negative values are there
[x,fs] = wavread('C:\Users\hp\Desktop\ee.wav'); the valuess of in <26121*1double>.... float2bin is not working for the double ...

presque 10 ans il y a | 1 réponse | 0

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what are the algorithms are available for image steganography..
i use lsb algorithm..if i am changing the intermediate bits means can i get the accurate output?? can genetic algorithm used f...

presque 10 ans il y a | 1 réponse | 0

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Question


i done data hiding in image using lsb algorithm..i store the stego image in .gif format..again i read a stego image means that matrix value will be changed..how its occurs..how can i get the stego image matrix correctly
if i want t retrieve the hidden data from the stego image means, i willl do the reverse process in the same program or again rea...

presque 10 ans il y a | 1 réponse | 0

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Question


i have 128 values in a single variable..how can separate each 8 bits?? and then i convert the each 8 bit into ascii and then convert into string??
f=dec2bin(d);%i have 128 values in f how can i separate each 8bits..and then convert into ascii and then string

presque 10 ans il y a | 1 réponse | 0

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i hide a text into an image by using lsb algorithm successfully..now i want to retrive the txt from the stegno image by the same algorithm..how can i retrieve the text
stegenography using lsb algorithm

presque 10 ans il y a | 1 réponse | 0

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Question


i want to hide an image into audio file
i need a coding by using lsb algorithm

presque 10 ans il y a | 2 réponses | 0

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i want t hide an 256 * 256 image into the audio file by using lsb algorithm..i think there is a possibility of noise..i want to produce the output as noise free or very low noise. ..what can i do??
if i use a filter means it removes the noise..But there is a possibility of loss of my image content..so give me the solution fo...

presque 10 ans il y a | 1 réponse | 0

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Question


there are two 8 bit binary values in a single variable...how can i concate these two values???
a='asd'; b=double(a); c=dec2bin(b,8); d=length(c); i need to get d as 24 how can i get?

presque 10 ans il y a | 3 réponses | 0

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