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# angel

18 total contributions since 2013

Professional Interests: image processing, image forensics

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Question

autoCorrelation of an image
i've divided the image into overlapping blocks now i want to calculate the autoCorrelation of each block. how this can be do...

3 years ago | 0 Answers | 0

### 0

Question

problem with ssim function
i've divided the image into overlapping blocks and size of each block is 2x2. but when i used the ssim function it shows the res...

3 years ago | 1 Answers | 0

### 1

Question

which are the methods that tell us that the image blocks are same or identical?
correlation and root mean square method i know.... except these two methods what are the other methods?

3 years ago | 1 Answers | 0

### 1

Question

how can i store the location (x,y) in a variable in a loop?
the code i tried is: index=1; B=zeros(BmatRows,BmatCols); for row=1:incrR:rows-(blockSizeR-1) rowStart=row; ...

3 years ago | 2 Answers | 0

### 2

Question

how can we find distance between two image blocks?
i've divided the image into overlapping blocks.... i've calculated the correlation of these blocks with each other.. now i w...

3 years ago | 1 Answers | 0

### 1

Question

how can i compare one vector with the other vector when all the stored in a matrix.
i have matrix B in which vectors are stored row wise i.e. B= [ 12 34 56 78 34 76 98 21 98 76 56 34 12 3...

3 years ago | 1 Answers | 0

### 1

Question

how to enlarge the blocks in subplot
i've a grayscale image 0f size 256x256 and i've divided it into 16x16 blocks i've ploted this with the function subplot like ...

3 years ago | 0 Answers | 0

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Question

plz help me sorting the error...
the code i wrote is: S(y,x)=0.125*f(y,mod(x-p-2,N)+1)+... 0.375*f(y,x)+... 0.375*f(...

3 years ago | 1 Answers | 0

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Question

i want to decompose an image using Dyadic Wavelet Transform(DyWT) to scale one... help me to solve my query
m working on grayscale images I=rgb2gray(imread('inputImage')); i want to do the decomposition using DyWT to scale one.....

3 years ago | 0 Answers | 0

### 0

Question

calculate correlation between the blocks
i've divided the image into 16x16 blocks i.e total of 256 blocks. now i want to calculate the correlation between the blocks...

3 years ago | 1 Answers | 0

### 1

Question

i've divided the image into non-overlapping blocks i.e 16 x 16. i'want to convert these blocks to array using mat2cell... can u tell me hoe to do so?
i've read the tutorial of mat2cell but unable to generalize it for 16x16 blocks. the code is: grayImage=imread('inpImage'...

3 years ago | 1 Answers | 0

### 1

Question

how to sort CORRELATION property of graycoprops?
sorting of correlation values is done. it works well with 2x2 but not working with 16x16 or 8x8.. can u tell me why is it so... ...

3 years ago | 1 Answers | 0

### 1

Question

how can we change the color of the portion of a color image
i've divided my image into 8x8 non overlapping blocks with the function grayImage(row1:row2,col1:col2); that mean i've...

3 years ago | 1 Answers | 0

### 1

Question

i've 16x16 blocks of the input image and an array of mean values. i want to extract a particular block having same mean value
how can i extract the particular blocks having same mean values from all 256 blocks... the code i wrote is: for row = 1 :...

3 years ago | 1 Answers | 0

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Question

setting the colors for blocks
i've a grayscale image and i've divided into non-overlapping blocks. i want to color/mark the blocks having same mean value. ...

4 years ago | 1 Answers | 0

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Question

what is meant by GLCM MEAN (average) ?
i want to know the meaning of GLCM MEAN.. how can i calculate it in matlab? what is the syntax? reply soon

4 years ago | 3 Answers | 0

### 3

Question

i've divided the image into non-overlapping blocks and i want to calculate the mean of every block...
after calculating the mean i;ve to store it in array corresponding to their block number plz tell me how to do? Mean=[];...

4 years ago | 3 Answers | 0