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Deblurring image with deconvolution
I have a picture 'image.jpg' that is blurred with function sin(x+y). How can I deblur it with deconvolution?

mer än 5 år ago | 0 answers | 0

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answers

Question


How can I clear the noise from a picture
Assume that a picture is multiplied by the noise sin(Ax+By). how can I clear the noise using deconvolution?

mer än 5 år ago | 1 answer | 0

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answer

Question


Where is the problem with my code. it never ends !!
What is the problem with the following code? It calculates the exponential coefficients fo fourier series of periodic functio...

nästan 6 år ago | 1 answer | 0

1

answer

Question


creating function matlab code
How can write a function DFT(x) (in terms of jw) such that for the given discrete signal x[n]: <</matlabcentral/answers/uploa...

nästan 6 år ago | 0 answers | 0

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Question


Error: Conversion to logical from sym is not possible.
Why I get the error in title? syms x h myconv myconv=0; h=0; x(n)=(1/2^(-n+1))*(heaviside(n+2)-heaviside(n-2)); ...

ungefär 6 år ago | 0 answers | 0

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answers

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why I get error using stem?
I tried this code to stem the convolution of two discrete time signals x and h without using conv function. but I get error e...

ungefär 6 år ago | 0 answers | 0

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answers

Question


why I'm getting error with symsum?
I have tried this code to calculate energy and power of discrete time functions. but I get errors. how can I fix it? syms ...

ungefär 6 år ago | 0 answers | 0

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Question


Calculating energy and power of a signal
I tried this code to calculate energy and power of the input function f(x). but I get error. how can I fix it? syms x y z e...

ungefär 6 år ago | 2 answers | 0

2

answers

Question


why is my plot shows nothing?
why is my plot shows nothing? syms w w=-1*10*pi:0.005:10*pi; plot(w,sqrt(w.^2+w.^6)/(1+w.^4),'b');

ungefär 6 år ago | 3 answers | 0

3

answers

Question


how can I write a function y(n) in terms of function x(n)?
I run this code and I get error. (the error is for function y which contains function x in its defenition). how can i fix this e...

ungefär 6 år ago | 2 answers | 0

2

answers

Question


Showing data values on markers in figure
When I run: x=0.4:3.6; x1=[.4 1 1.4 2 2.4 3 3.6]; y1=[17.25 33.6 36.72 37.2 36.8 36.75 32.7]; plot(x1,y1,'Marker','s...

mer än 6 år ago | 1 answer | 1

1

answer

Question


Plotting dirac delta function's spectrum
I used the following code to plot the spectrum of some functions. but it doesn't work for the function dirac(t-t0) at t0=0. How ...

mer än 6 år ago | 1 answer | 0

1

answer

Question


Error using plot ; spectrum of function
Why I get error using the following code? syms t w; syms g h; g=fourier(exp(-1*(t^2))); h=abs(g); w=-10.1:10.1; plot...

mer än 6 år ago | 2 answers | 0

2

answers

Question


Polar : ERROR: Data must be numeric, datetime, duration or an array convertible to double.
In this code I want to enter the function f(r) in terms of 'r' and then plot its figure with polarplot and calculate grad(f(r)) ...

nästan 7 år ago | 1 answer | 0

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answer

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Error: The size of X must match the size of U or the number of columns of U.
What's the problem with this code? when I run it the following Error occurs: Error using quiver The size of X must match ...

nästan 7 år ago | 2 answers | 0

2

answers

Question


How to use gradient?
what is the problem with the following code? f=input('enter function: ','s') [DX,DY] = -gradient(f); f = str2func(['@...

nästan 7 år ago | 2 answers | 0

2

answers

Question


Error using contour: Z must be at least a 2x2 matrix.
What's the problem with the following code? f=input('enter function: ','s'); f = str2func(['@(x,y)' vectorize(f)]); [...

nästan 7 år ago | 1 answer | 0

1

answer

Question


ERROR: Z must be a matrix, not a scalar or vector.
What's the problem with the following code? syms x y; f=input('enter function: ','s'); f = symfun(eval(f), [x y]); [...

nästan 7 år ago | 1 answer | 0

1

answer