Mohsin Shah

USTC China

Last seen: fast 3 Jahre vor | Aktiv seit 2011

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Extracting multiple numerical values from an image
Is it possible to extract multiple numerical values from the this image?

mehr als 3 Jahre vor | 1 Antwort | 0

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Extracting histogram each row of matrix
I hope this will solve your problem. A = [0 4; 0 -5; 0 -1; 0 -1; 2 -1; 3 3; 2 4; 4 0; 0 1; 0 -2; 0 -1; 0 -1; 0 -1;2 -1;2 -1;3 ...

fast 5 Jahre vor | 1

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How to generate a random number of n bits length?
Let's say a function takes input n as the bit length and outputs a random number. For example, for n = 4, the output range is [0...

mehr als 5 Jahre vor | 2 Antworten | 0

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How to add to an image white Gaussian noise of zero mean and standard deviation of certain gray levels?
Hello everyone, How can we add white Gaussian noise to an image with zero mean and standard deviation of 64 gray levels? I do kn...

fast 6 Jahre vor | 2 Antworten | 0

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Code computes histogram equalization not similar to Matlab's histeq function
I have a written a simple code for histogram equalization based on this formula: HistEq = (max gray leve/total no of pixels)*cum...

fast 6 Jahre vor | 1 Antwort | 0

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How to process a subset of a matrix
I have a nxm matrix and I want to divide the first R rows by a certain number. For example, 2 4 6 8 10 12...

etwa 6 Jahre vor | 1 Antwort | 0

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A Slow Running Code
As a part of my project, I am using VPI's powermod function for computing matrix raised to a high power. I do know that powermod...

etwa 6 Jahre vor | 0 Antworten | 0

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Image display with uint8 and double
Can someone explain why the following image, 'yinyang.png', is displayed differently when I use uint8 and double in the imshow f...

etwa 6 Jahre vor | 1 Antwort | 0

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How to process each non-overlapped block of an image after it's sub-division?
My function sub-divides an image into non-overlapping blocks (each block is a cell matrix). I wonder how to process each block a...

etwa 6 Jahre vor | 2 Antworten | 0

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How to make my code run faster?
I have written a small piece of code for computing a list of numbers that are relatively prime to a big integer N. This code tak...

etwa 6 Jahre vor | 1 Antwort | 0

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Why there is a difference between the dct computed by the MATLAB dct function and one computed by dct matrix multiplication?
<</matlabcentral/answers/uploaded_files/106248/Capture1.PNG>> The result is different, though both methods give inverse trans...

etwa 6 Jahre vor | 1 Antwort | 0

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Find out number of bits needed to represent a positive integer in binary?
How to compute the bit length of a positive integer-the number of bits to represent a positive integer. For example, we have: ...

mehr als 6 Jahre vor | 4 Antworten | 0

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Can we use 'parfor' in user defined function?
Hello, Can we use 'parfor' in used defined functions? I want to use parfor in user defined functions to improve the speed of my ...

mehr als 6 Jahre vor | 1 Antwort | 0

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Randomizing the rows of a matrix and reversing
Hello, I have a 988 x 3 matrix (say the vertices of 3D object) and I want to randomize the rows of this matrix and then do the r...

mehr als 6 Jahre vor | 1 Antwort | 0

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Non-repeating random integer generator with a seed
Hello, How to generate random integers with a seed value. I know about randi and ranperm. rnadi can use a seed value to generate...

mehr als 6 Jahre vor | 1 Antwort | 0

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Difference between MATLAB tic-toc time and actual time measured with a stop watch
Hello, this may seem stupid but I tried to check the time measured by tic-toc and the actual time measured with the help of stop...

mehr als 6 Jahre vor | 1 Antwort | 0

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How to record the neighbors of each vertex of a 3D mesh model?
Given the vertex list which contain the indices of vertices, x-axis coordinate, y-axis coordinate, and z-axis coordinate, and th...