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Anvinder Singh


Actif depuis 2016

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When clicked on Matlab icon does not start Matlab
Mine says Unknown application only but still it doesnt work.

plus de 7 ans il y a | 0

Question


insert a small matrix inside a big matrix
i have a 1000 x 1000 matrix and a 45 x 45 matrix. both have random numbers. how can i insert the small matrix in the bigger one ...

environ 8 ans il y a | 1 réponse | 0

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Réponse apportée
zero padding in matrix
Just struck my brain ! Thanks Azzi Abdelmalek for the quick response.

environ 8 ans il y a | 0

Question


zero padding in matrix
Hi, I have a 5x5 matrix and i would like to pad it with zeros such that its size becomes 200x200 and the 5x5 matrix is in the ...

environ 8 ans il y a | 2 réponses | 0

2

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Question


optimization of a buffer controller system (VLSI signal processing architecture)
Hi, I have 7 processors in my system and it has 11 buffers. There are feedback loops and i want to find out the optimized freq...

plus de 8 ans il y a | 1 réponse | 0

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Question


I want to change the gray scale from [0 1] to [0 500]
I want to change the gray scale from [0 1] to [0 500] and have used the following functions b= imadjust(a,[0; 1],[0; 500]) ...

plus de 8 ans il y a | 2 réponses | 0

2

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change color intensity of matrix for some pixels
I have a matrix and it has 2 squares, i have used "a = ones(256, 256, 3);" so it gives me a white background. I wantt to change ...

plus de 8 ans il y a | 1 réponse | 0

1

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Question


poisson random variable for 2d array
Hi, So far i have been using poisson random function to give it a value of mean and the dimensions of the matrices to give me de...

plus de 8 ans il y a | 1 réponse | 0

0

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Question


poisson random variable for 2d array
Hi, So far i have been using poisson random function to give it a value of mean and the dimensions of the matrices to give me ...

plus de 8 ans il y a | 1 réponse | 0

0

réponse

Question


poisson random variable and adding noise to it,
Hi, I have a 2d poisson random variable to wchi i give a mean value and i am looking at the graph which looks fine. But as soo...

plus de 8 ans il y a | 1 réponse | 0

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Question


change color intensity of rectangles made using matrix
Hi, Can anybody help me understand the concept of color intensity in the following : I have 2 rectangles of black color. I wan...

plus de 8 ans il y a | 1 réponse | 0

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Question


change color of output graph
I have a matlab plot (draw rectangle using matrix) but it shows the output in blue color whereas i want it in black color. How c...

plus de 8 ans il y a | 3 réponses | 0

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Réponse apportée
Drawing rectangles using matrices.
The y axis of the graph is still reversed. I have tried axis([0,280, 0,280]); and set(gca, 'ydir', 'reverse'); % or 'normal'

plus de 8 ans il y a | 0

Question


plot a quadratic equation
I am to plot a quadratic equation and see how it looks . This is my code : x=[-1:0.05:3]; f=(3*(x.^2))-(2*x); plot(f) xlim([...

plus de 8 ans il y a | 2 réponses | 0

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Question


Drawing rectangles using matrices.
Hi, I need to draw a figure as shown in the picture using 256x256 matrix. There should be two rectangles and the rest of the...

plus de 8 ans il y a | 4 réponses | 0

4

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poisson function help !
I need to imlement a poisson function. In matlab it asks for the value of lamda and x both in order to plaot the function bu...

plus de 8 ans il y a | 1 réponse | 0

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Question


I want to use a floating point matrix (2d) or a 2d array to make a simple basic image (be it square or rectangle) and then convert it to grayscale and add poisson noise to it. But the code i have is not working.
a = repmat(0:0.01:0.5,100,5); i = mat2gray(a); j=imnoise(i,'poisson'); imshow(i) figure(); imshow(j) It shows the same...

plus de 8 ans il y a | 1 réponse | 0

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When i plot a grayscale image and check the value of a pixel using data cursor, it shows me the values between 0 and 1 which looks reasonable but it has a RGB scale. Can a grayscale image has RGB Values ?
x = rand([100 50]); i = mat2gray(x); imshow(i)

plus de 8 ans il y a | 1 réponse | 0

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Question


Hi, I want a 2d array of rows and columns filled with floating point numbers (matrix) which can be converted to a grayscale image.
Should i use the mat2gray function of matlab ? I want to program my own image and fill it with numbers.

plus de 8 ans il y a | 1 réponse | 0

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