Anushka

Actif depuis 2015

Followers: 0 Following: 0

Statistiques

Feeds

Question

Can rc4 encryption applied for color images?
The following code for rc4 encryption and decryption for grayscale images.Can this be also used for color images? function ...

plus de 7 ans il y a | 1 réponse | 0

0

réponse

Réponse apportée
how to divide an image into blocks
J = imresize(M1, [256 256]); [r c]=size(J); bs=32; % Block Size (32x32) nob=64 % Total number of 32x32 Blocks % Di...

plus de 8 ans il y a | 0

| A accepté

Question

What does the x and y axis in the plot obtained by Scatter() in matlab indicate?
What does the x and y axis in the plot obtained by Scatter() in matlab indicate?

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

What is the difference between corr2 and corrcoef built in functions in matlab ?Can both be used to find the correlation coefficient between two color images?
What is the difference between corr2 and corrcoef built in functions in matlab ?Can both be used to find the correlation coeffic...

environ 10 ans il y a | 1 réponse | 0

0

réponse

Question

I did PVD steganography for hiding text in color image can any one please help me to use the same code for hiding color image inside color cover image in matlab?
I did PVD steganography for hiding text in color image can any one please help me to use the same code for hiding color image in...

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

I did PVD modulus steganography in matlab.The Hiding process is correct and it shows the stego image.But the retrieval process is not correct. Can any one please sort out the problem in the retrieval process.
I did PVD steganography in matlab. The Hiding process is correct and it shows the stego image.But the retrieval process is not c...

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

Is PVD steganography be used for hiding only text or can it also be used for hiding color image inside color cover image?
Is PVD steganography be used for hiding only text or can it also be used for hiding color image inside color cover image?

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

How to find the embedding rate and embedding capacity of PVD stenography?
How to find the embedding rate and embedding capacity of PVD stenography in matlab?

environ 10 ans il y a | 1 réponse | 0

0

réponse

Question

What is an image with values one and 255 only called?
What is an image with values one and 255 only called?

environ 10 ans il y a | 2 réponses | 0

2

réponses

Question

Can a binary image be converted into color image by multiplying each value by 2^i?
Can a binary image be converted into color image by using the following equation? <</matlabcentral/answers/uploaded_files/359...

environ 10 ans il y a | 2 réponses | 0

2

réponses

Question

How to extract 24 binary images from one RGB image which is of 24-bit/pixel color depth?
How to extract 24 binary images from one RGB image which is of 24-bit/pixel color depth in matlab ?

environ 10 ans il y a | 2 réponses | 0

2

réponses

Question

Which are the other Spatial domain stenography methods other than LSB?
Which are the other Spatial domain stenography methods other than LSB?

environ 10 ans il y a | 1 réponse | 0

0

réponse

Question

Does psnr of stego image for LSB after AES algorithm and LSB after RC4 algorithm have any difference?
Does psnr of stego image for LSB after AES algorithm and LSB after RC4 algorithm have any difference in matlab?

environ 10 ans il y a | 2 réponses | 0

2

réponses

Question

What are other operations like XOR which can be used for combining images in Matlab ?
What are other operations like XOR which can be used for images in Matlab?

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

Can a function which works well for grayscale images be applied for RGB images also?
Can a function which works well for grayscale images be applied for RGB images also?

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

How to hide a vector inside an true color image using LSB technique?
How to hide a vector inside an true color image using LSB technique and retrieve the vector back ?

environ 10 ans il y a | 1 réponse | 0

0

réponse

Question

I used the following code for hiding a binarystring inside an image using lsb using the following code but an error occurred.
I used the following code for hiding a binary string inside an image using lsb using the following code but an error occurred. ...

environ 10 ans il y a | 2 réponses | 0

2

réponses

Question

How to combine vectors of different size there are row vectors as well as column vectors in matlab and change it back to vectors?
How to combine vectors of different size there are row vectors as well as column vectors in matlab and change it back to vector...

environ 10 ans il y a | 1 réponse | 0

0

réponse

Question

How to see the compressed image after applying Huffman compression in an image?
How to see the compressed image after applying Huffman compression in an image?

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

Can psnr be used for any type of images?
Can psnr be used for any type of images?If an image is encoded inside an qr code.Is it possible to find the psnr of the qr code?...

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

How to store the Huffman code obtained inside an image?
How to store the Huffman code obtained inside an image in matlab?

environ 10 ans il y a | 1 réponse | 0

0

réponse

Question

How to find out the different intensity values that are used in the image and make out a list of them.Then find the freq. of occurence (probability) of each of intensity values in the image?
How to find out the different intensity values that are used in the image and make out a list of them. Then find the freq. of o...

environ 10 ans il y a | 2 réponses | 0

2

réponses

Question

How to store Huffman code obtained after Huffman compression inside an image?
How to store Huffman code obtained after Huffman compression inside an image?Since the code obtained after encoding is very larg...

environ 10 ans il y a | 1 réponse | 0

1

réponse

Question

How to install Zxing and how to set core.jar on the class path in matlab for encode and decode of a string in QR code?
How to install Zxing and hoe to set core.jar on the class path in matlab for encode and decode of a string in QR code?

plus de 10 ans il y a | 1 réponse | 3

0

réponse

Question

How to draw a graph of an image with frequency in y axis and pixel value in x axis in matlab?
How to draw a graph of an image with frequency in y axis and pixel value in x axis in matlab?

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Question

How to find the contrast of a image in Matlab?
How to find the contrast of a image in Matlab?

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

What is the syntax for do while loop in matlab?
What is the syntax of do while loop in matlab? Can anyone give an example too.

plus de 10 ans il y a | 2 réponses | 1

2

réponses

Question

How to convert a 5 bit decimal number to 16 bit binary number in Matlab without using dec2bin convertion?
How to convert a 5 bit decimal number to 16 bit binary number in Matlab without using dec2bin?

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

How to code the following equation in matlab.
How to code the following equation in matlab. <</matlabcentral/answers/uploaded_files/34024/mathswork.png>>

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

How to access each digit of a number in matlab without converting it into string?
How to access each digit of a number in matlab?

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Charger plus