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Domanda


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?

quasi 6 anni fa | 0 risposte | 0

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Domanda


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?

quasi 6 anni fa | 1 risposta | 0

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Domanda


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...

circa 6 anni fa | 1 risposta | 0

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Domanda


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...

circa 6 anni fa | 0 risposte | 0

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Domanda


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)); ...

oltre 6 anni fa | 0 risposte | 0

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Domanda


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...

oltre 6 anni fa | 0 risposte | 0

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Domanda


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 ...

oltre 6 anni fa | 0 risposte | 0

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Domanda


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...

oltre 6 anni fa | 2 risposte | 0

2

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Domanda


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');

oltre 6 anni fa | 3 risposte | 0

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Domanda


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...

oltre 6 anni fa | 2 risposte | 0

2

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Domanda


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...

oltre 6 anni fa | 1 risposta | 1

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Domanda


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 ...

oltre 6 anni fa | 1 risposta | 0

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Domanda


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...

oltre 6 anni fa | 2 risposte | 0

2

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Domanda


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)) ...

circa 7 anni fa | 1 risposta | 0

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Domanda


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 ...

circa 7 anni fa | 2 risposte | 0

2

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Domanda


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

circa 7 anni fa | 2 risposte | 0

2

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Domanda


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)]); [...

circa 7 anni fa | 1 risposta | 0

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Domanda


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]); [...

circa 7 anni fa | 1 risposta | 0

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