# Muzammil Behzad

### KFUPM

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Question

Finding neighboring pixels surrounding a region/patch

Hello Dear Community. After trying and searching a lot, I ultimately have to put the question here. I need to find the neighb...

mer än 7 år ago | 1 answer | 0

### 1

answerQuestion

Noise distribution in R.G.B channels

Hello, I needed to know if we add let's say a Gaussian noise to a color image so is the same noise added to a patch at same p...

nästan 8 år ago | 0 answers | 0

### 0

answersQuestion

Finding 67000x67000 size weighting matrix

Hello, I need to find a large 67000x67000 size weighting matrix for a number of signals I have. For example I have 67000 sign...

nästan 8 år ago | 0 answers | 0

### 0

answersQuestion

Grouping similar pixels in bins

Hi, Can someone tell me how do I divide the pixels in an image into let's say 16 bins? For example we have a grayscale image ...

nästan 8 år ago | 1 answer | 0

### 1

answerQuestion

Correct way of plotting images

Hi community, I need to know what's the correct way of plotting an image. Let's say I have an original grayscale [0-255] imag...

nästan 8 år ago | 2 answers | 0

### 2

answersQuestion

Quantizing a grayscale image into 256 levels

Hi community, I have a very simple question and I searched for it too but I am not getting the correct way of doing it. I hav...

nästan 8 år ago | 1 answer | 0

### 1

answerQuestion

Generating a wavelet dictionary for sparse representation of images

Hello, I am trying to represent the patches of an image in terms of the wavelet basis/columns of a dictionary/sensing matrix ...

ungefär 8 år ago | 0 answers | 0

### 0

answersQuestion

Correlation coefficeint as a similarity index

Hello everyone, I am trying to find similarity among let's say 1000 signals via correlation coefficient. Each signal will be ...

ungefär 8 år ago | 1 answer | 0

### 1

answerQuestion

Difference between PSNR and SSIM comparison

Hello everyone. I have been reading about this but couldn't understand properly that's why posting it here. How would we diff...

ungefär 8 år ago | 0 answers | 0

### 0

answersQuestion

Normalizing columns of a matrix

Hello everyone, I have a matrix of, let's say 10000x10000 size, and I want to normalize each column of the matrix by its resp...

ungefär 8 år ago | 2 answers | 0

### 2

answersQuestion

Image denoising using MMSE

Hi everyone, I have a Gaussian noise corrupted image and I need to know how can I denoise the image using MMSE estimate in MA...

mer än 8 år ago | 0 answers | 0

### 0

answersQuestion

MMSE of a Gaussian noisy image

Hi everyone, I have a Gaussian noise corrupted image and I need to know how can I find the MMSE estimate of the entire noisy...

mer än 8 år ago | 1 answer | 0

### 1

answerQuestion

Probability of Symbol Error Rate (SER) of M-FSK plot against Es/No

Hello, I tried to plot theoretical probability of Symbol Error Rate (SER) of M-FSK plot against Es/No but I think the result...

mer än 9 år ago | 0 answers | 0

### 0

answersQuestion

3D to 2D and then back from 2D to 3D

Hello, I am trying this image conversion. I read an image using matlab's command data = double(imread('image.jpg')); which gi...

mer än 9 år ago | 2 answers | 0