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Iman Ansari


Last seen: 2 years ago |  Active since 2013

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A problem in using imhist to display histogram of indexed image
First i convert the image to an indexed image, and use only 5 colors to show what is my problem. clear img = imrea...

8 years ago | 0 answers | 1

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answers

Answered
When i make simulation, the plot at workspace is different the plot at scope?? .. I want the plot at workspace same as the plot at scope
Hi Use simulation time vector to plot in command widow, maybe the simulation ran with variable steps. Something like this: ...

9 years ago | 0

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Answered
use evalfis to read input under a range
In your code, input isn't same as [88 134 144]. They are logical (0,1): evalfis([88 134 144]) but: evalfis([0 1 1...

10 years ago | 0

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Answered
Open many files using uiopen or uigetfile
filename = uigetfile('*.*', 'All Files (*.*)','MultiSelect','on');

10 years ago | 1

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Answered
How to use find function in cell array
C = {100*rand(100,2);100*rand(100,2);100*rand(100,2)}; X = cellfun(@(x) find(x(:,1)<27),C,'Un',0);

10 years ago | 0

Answered
A moving point plot in MATLAB figure with animation.
n = 50; XY = 10 * rand(2,n) - 5; for i=1:n plot(XY(1,i),XY(2,i),'or','MarkerSize',5,'MarkerFaceColor','r') ...

10 years ago | 3

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Answered
Generate gaussian random points in 3D space with a given mean position.
m = [2 0 2]; s = 1; n = bsxfun(@plus,m,s.*randn(100,3)); plot3(n(:,1),n(:,2),n(:,3),'.r') M = mean(n,1) S =...

11 years ago | 2

Answered
Write in Excel With Matlab on continues Cells
First put your data in a cell array then write it: rangT = 1:10; maximox = rand(10,10); fprintf('Select file locati...

11 years ago | 0

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Answered
how to eliminate the error
@time ===> @times s1.coefs=bsxfun(@times,s1.coefs(:,1:end-1),s1.order:-1:1)

11 years ago | 1

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Answered
how to draw a temperature distribution on (x,y,z)?
t defines color: [x y] = meshgrid(-10:0.1:10); z =zeros(size(x)); z(x+2*y>-9 & 2*x+y<9 & x-y>-10 & x-y<15) = 1; ...

11 years ago | 0

Answered
Stor data in a vector
p_t2=1:1000 pt2=1:40 JJ=[]; for z=1:40 for v=1:25 XX=p_t2(v)./pt2; JJ=[JJ sum(XX)]; ...

11 years ago | 0

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Answered
im trying to make array of images s1,s2,s3 and s4 and want to show them in different figures ........... what is wrong over there? .........
clear arr={s1,s2,s3,s4}; for i=1:4 b=imread(arr{i}); figure imshow(b); end

11 years ago | 0

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Answered
how to use "if" statement properly?
A=rand(10,1); B=rand(10,1); z=B./A; z(z<1)=-1./z(z<1)

11 years ago | 1

Answered
how to draw circles with different radii
n=10; X=rand(n,1)*10; Y=rand(n,1)*10; R=rand(n,1)*3; P=[0:0.1:2*pi 0]; xr=R*cos(P); yr=R*sin(P); X_C=bsxf...

11 years ago | 1

Answered
inverse laplace transformation and plot of transfer function
Why residue(b,roots(a))? b=[0,-1.387778780781446e-017, -2.775557561562891e-017, 3.333333333333329e-005]; a=[1.0000000000...

11 years ago | 0

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Answered
Getting element row and column (index location) out of a matrix?
Resultant=rand(10,10); [B,IX] = sort(Resultant(:),'descend') [r c] = ind2sub(size(Resultant),IX(1:5))

11 years ago | 1

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Answered
histogram of 3D intensity image and normalize the intensity by linearly fitting the histogram to the ICBM-152
A=uint8(randi(256,256,124,256)-1); H1=imhist(A(:)); % Or %H2=histc(A(:),0:255); B=imread('cameraman.tif'); ...

11 years ago | 0

Answered
Organize data as vector matrix and do calculation ?
lightV = zeros(1, 1, 3); lightV(1,1,1) = 0.5; lightV(1,1,2) = 0.4; lightV(1,1,3) = 0.7; [Az El] = meshgrid(0:60:36...

11 years ago | 0

Answered
Howto arrange panels in desktop
After adding editor panel in position [1,2], drag workspace panel and drop it in right half of editor panel: <<http://snag.g...

11 years ago | 0

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Answered
Export to a fixed width text file
A={'s09' 1111222003 321 'P' 'ehz';'z09' 1011222003 321 'O' 'edz'}; A=cellfun(@num2str,A,'Un',false) B=strcat(A(:,1),{' ...

11 years ago | 0

Answered
horzcat error while using ' '
names=['john'; 'ravi'; 'mary'; 'xiao'] howdy=['10'; '20'; '30' ;'40'] result=[names repmat(' ',4,1) howdy]

11 years ago | 0

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Answered
How to evaluate dirac function in matlab?
syms x; y=diff(dirac(x),x) subs(y,1)

11 years ago | 1

Answered
I have a matrix which is [y1 x1 y2 x2 y3 x3.......]. The size variable depends on the input, I wanna extract y(i) and x(i) seperately from this matrix.
a=1:10 y=a(1:2:end)' x=a(2:2:end)'

11 years ago | 0

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Answered
Maclaurin Series function in matlab
function Maclaurin n=5; x=input('enter the x value: '); epsilon_s=(0.5*10^(2-n)); epsilon=100; maclaurin(1)=1; ...

11 years ago | 0

Answered
Elementwise multiplication, function definition
[x, y] = meshgrid(linspace(0,400,400),linspace(0,30000,400)); A1 = -8.269000000000000; m1 = 2.071000000000000; m2...

11 years ago | 0

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Answered
Failed to add uniform noise to the image
Hi. You don't need imnoise: round(128+0.2)=128 with 0.1 and 0.2 like you didn't add any noise. Uniform noise with zero m...

11 years ago | 0

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Answered
could you fix these codes?
Hi. Use cell array: I=imread('moon.tif'); C=mat2cell(I(1:32,1:32),8*ones(1,4),8*ones(1,4)); imshow(C{5},'InitialMagni...

11 years ago | 0

Answered
problem with ssim function
Hi. It's default window: window = fspecial('gaussian', 11, 1.5); If input images has smaller size than 11*11 (it's windo...

11 years ago | 0

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Answered
Create an anonymous function after Symbolic differentiation
Hi. syms x f=@(x) x^3+3*x+1; g=diff(f(x)) h=@(y) subs(g,y)

11 years ago | 0

Answered
Troubles with modeling step response in Simulink
Delete your Integrator block, you didn't define it in your code.

11 years ago | 0

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