# Anushka

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**Content Feed**

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 ...

meer dan 3 jaar ago | 0 answers | 0

### 0

answershow 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...

bijna 5 jaar ago | 0

| accepted

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?

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 6 jaar ago | 0 answers | 0

### 0

answersQuestion

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...

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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?

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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?

meer dan 6 jaar ago | 0 answers | 0

### 0

answersQuestion

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

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

meer dan 6 jaar ago | 2 answers | 0

### 2

answersQuestion

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...

meer dan 6 jaar ago | 2 answers | 0

### 2

answersQuestion

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 ?

meer dan 6 jaar ago | 2 answers | 0

### 2

answersQuestion

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

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

meer dan 6 jaar ago | 0 answers | 0

### 0

answersQuestion

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?

meer dan 6 jaar ago | 2 answers | 0

### 2

answersQuestion

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?

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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?

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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 ?

meer dan 6 jaar ago | 0 answers | 0

### 0

answersQuestion

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. ...

meer dan 6 jaar ago | 2 answers | 0

### 2

answersQuestion

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...

meer dan 6 jaar ago | 0 answers | 0

### 0

answersQuestion

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?

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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?...

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

How to store the Huffman code obtained inside an image?

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

meer dan 6 jaar ago | 0 answers | 0

### 0

answersQuestion

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...

meer dan 6 jaar ago | 2 answers | 0

### 2

answersQuestion

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...

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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?

meer dan 6 jaar ago | 0 answers | 3

### 0

answersQuestion

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?

meer dan 6 jaar ago | 2 answers | 0

### 2

answersQuestion

How to find the contrast of a image in Matlab?

How to find the contrast of a image in Matlab?

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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.

meer dan 6 jaar ago | 2 answers | 1

### 2

answersQuestion

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?

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

How to code the following equation in matlab.

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

meer dan 6 jaar ago | 1 answer | 0

### 1

answerQuestion

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?

meer dan 6 jaar ago | 2 answers | 0