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ruban ramalingam


Last seen: 約2年 前 |  2018 年からアクティブ

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質問


Help: Edge detection technique of image
I have used the following code close all; a = imread('3.bmp'); imshow(a) figure imedge = edge(img, 'sobel',0.05); imshow(i...

4年以上 前 | 0 件の回答 | 0

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Help: how to count the number of holes on the images and its sizes
I attached a file containing image.. It consists of many black holes.. I want to count the number of black holes and its sizes....

4年以上 前 | 1 件の回答 | 0

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Help: Problem in using image detection filters
I have a fractography image. I want to determine the edge detection in the fractographs... I want to compare the edge detection ...

4年以上 前 | 0 件の回答 | 0

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how to measure the size of black spots(dimples) of various sizes using regionprops?
I have a fractography image. It consists of many black spots.. Black spots are of different shapes and sizes . I want to count t...

4年以上 前 | 0 件の回答 | 0

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Help in image processing - how to count the number of black shapes on white image
I have a fractography image. It consists of many black spots.. Black spots are of different shapes. I want to count the number o...

4年以上 前 | 1 件の回答 | 0

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Help! How to convert grey scale image to colour contrast image?
I want to count the number of dimples (holes) in the microstructure. I want to change the colour constrast from black and whi...

4年以上 前 | 1 件の回答 | 0

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Help: Difficult in optimising these ODE 45 equations
First file function chisquare = myObjective(P) a = P(1); b = P(2); c = P(3); d = P(4); sigma = 180; hstress = 3463.46; H...

5年弱 前 | 0 件の回答 | 0

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Help :Difficult to solve linear equations in matlab??
y(1)=302.6:0.0055:332.3; y(2)=305.9:0.0096:355.2; New=(14.58E-4-5.89E-12.*(y(1).^4-8.08E+8)-11.86E-4.*(y(1)-302.8)+18.84E-4.*(...

5年弱 前 | 1 件の回答 | 0

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Problems using ODE45 using fmincon command for least square optimisation problem
Sir,, Whether the following codes should be in seperate file?? [t,y] = ode45(@(t,y)pair(t,y,a,b,d,hstress,sigma,Hstar,Kc,c),tsp...

5年弱 前 | 0

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Problems using ODE45 using fmincon command for least square optimisation problem
Script file function chisquare=myObjective(P) expdata=load('ru.txt'); straindata=expdata(:,2); Timedata=expdata(:,1); a=0....

5年弱 前 | 2 件の回答 | 0

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質問


Problem using ODE45 function
function dy=pair(t,y,a,b,d,hstress,sigma,Hstar,kc,c) %function definition dy=zeros(4,1); dy(1)=a*sinh((b*(sigma^d)*(...

5年弱 前 | 1 件の回答 | 0

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Help: Finds difficult in solving this coupled ordinary differential equations using ODE45 ??
I have been solving these coupled ordinary differential equations using ODE45 Function file (first file) function dy=pair1(t,y...

5年弱 前 | 1 件の回答 | 0

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質問


How to create an offset to the voronoi cells in Voronoi diagram?
A voronoi diagram has been constructed using the following codes from the mathworks documentation: x = gallery('uniformdata',[...

約5年 前 | 0 件の回答 | 0

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Help in creating voronoi diagram with offset cells
After creating voronoi cells are generated from the random seed points in a plane.... Each cell is offset to leave a desired amo...

約5年 前 | 0 件の回答 | 0

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Help in creating Voronoi diagram- MATLAB
I have tried this code available in matlab documentation.. x = gallery('uniformdata',[1 10],0); y = gallery('uniformdata',[1 1...

約5年 前 | 0 件の回答 | 0

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Help in curve fitting tool box
tr=[400 600 1200]; >> Sigma=[250 200 175]; >> cftool Want to fit the following custom equation tr= 1/B*(1+phi)*(sigma^chi) ...

約5年 前 | 2 件の回答 | 0

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Finding difficult to solve this coupled ode equations using ode45
I have been solving this two coupled ODE equations using ode45... Please find the attached files.... Even after defining the va...

5年以上 前 | 2 件の回答 | 0

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質問


how to link ODE45 solver with optimisation toolbox for least squares minimisation toolbox ?
I am solving four coupled ODEs using ODE45 solver with the intention of optimising the parameters with real data using lsqnonlin...

5年以上 前 | 1 件の回答 | 0

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how-do-i-estimate-or-optimize-the-parameters-of-my-ode-45 system of equations?
I have three constitutive equations containing variables which need to be optimised.. How to give the equality constraints in o...

5年以上 前 | 1 件の回答 | 0

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How to use the solvers in optimisation tool box for the following equations having equality constraints for least squares minimisation using lsqnonlin command??
How to use the solver in optimisation toolbox..i.e equality constraints and inequality constraints? I have attached the matlab ...

5年以上 前 | 0 件の回答 | 0

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Finding difficult in solving these coupled seven ODE's.. Initially tried to solve by runge kutta method... I want to solve by through ODE45 solver because solving by rk method requires more lines of execute,
clear; %Runge kutta for four coupled system of equations% %depsi_dt=A/(1-omega)^(b*sigma(1-hc)*sinh[(B*sigma*(1-H))] %dh_dt=(...

5年以上 前 | 0 件の回答 | 0

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Find difficult in solving these four coupled ODE's using ODE45....I have attached a file regarding these equations..
function dy=pair(t,y,a,b,d,hstress,sigma,Hstar,kc,c) dy(1)= a*sinh((b*(sigma^d)*(1-y(2)))/((1-y(3))*(1-y(4)))) ; dy(2)=((hst...

5年以上 前 | 1 件の回答 | 0

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Problem while solving the problem ode45
function dy=pair(t,y,a,b,c) dy(1)= -a.*y(1)+b*exp(-t); dy(2)=(-y(1).*y(2).^2)/c; end >> tspan=0:0.1:0.4; >> a=2; >> b=4; ...

5年以上 前 | 1 件の回答 | 0

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I am trying to solve these coupled equations using ode45...I have attached both the function file and script file...
function yp=rockyruban(t,y) a=0.5179; b=1.1003e-3; c=0.4576; d=1; hstress=3463.46; hstar=0.7846; kc=0.1137; T=503; si...

6年弱 前 | 2 件の回答 | 0

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