Answered
How can I display an image with all three color layers but with intensity for blue increased?
image(:,:,3) = round(image(:,:,3) + 255*BX/100

12 years ago | 0

Answered
switch function case{name}
Here is an example from mathworks % x = [12, 64, 24]; plottype = 'pie3'; switch plottype case 'bar' ...

12 years ago | 0

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How to save cell data from workspace?
It is working for me after loading.

12 years ago | 0

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Placing the ouputs of while loop in an array
What is the problem. Start putting them as soon as they are generated. if true index = 0 a(index)=output ...

12 years ago | 0

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multiple number of inputs n
it do works. Just give the input in [2 3 4] brackets.

12 years ago | 1

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How to detect peaks in laser strip
It is not possible due to noise. Although if you just want a line use hough transform to get different lines and then select the...

12 years ago | 0

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fitting of two curves and 6 unknown parameters
Use iteration with each variable keeping others constant. Then change other variables.

12 years ago | 0

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Solved

Add two numbers
Given a and b, return the sum a+b in c.

12 years ago

Answered
reading edf file to workspace
Hi why don't you just use http://www.mathworks.in/matlabcentral/fileexchange/31900-edfread

12 years ago | 0

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Answered
How to plot the columns data against the firs column (simulation time) instead of plotting against the serial number?
Hi you can just use it plot(x(:,1),x ,'o')

12 years ago | 0

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Answered
I have generated a large dataset. Now I need to draw random samples from it. How can I do this?
For dataset w p = randperm(length(w)); % Reshuffle their order randomly z = w(p(1:N)); % Choose the first N of th...

12 years ago | 0

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Answered
Mixture of Gaussian for Foreground object detection
Use segmentation . Once get the background subtract it. Search for expectation maximization and compression based segmentation t...

12 years ago | 0

Solved

Is my wife right?
Regardless of input, output the string 'yes'.

12 years ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

12 years ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

12 years ago

Answered
Finding the numbers of a vector with the same length?
Hi, You can save zero as it is and whenever 1 appears start a counter and count the number of 1s in succession. It is Run le...

12 years ago | 0

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using a nested for loop to walk through two matrix
Use [S(s),T(t)] instead of [s,t]

12 years ago | 0

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Answered
A= [2 3 4]; B=[2 3 4]; Output C=[22 33 44]; Merge 2 matrix elements
here it is A= num2str(A) B = num2str(B) C=strcat(A',B') C=str2num(C)

12 years ago | 0

Question

What are the best practice in mex ?
I have written a code in MEX to check its speed against the fully vectorized m-files. My codes are slower than m-files. My quest...

12 years ago | 2 answers | 0

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Question

How to know the sequence of file in a large project
HI Friends, I have a large project in which t...

12 years ago | 2 answers | 0

2

answers

Answered
Finding Circles in an Image. Hough Transform, Tao's CircularHough_Grd algorithm, Matlab's infindcircles
Hi Rohan, The intensity of the ball must be near to zero. So Histogram intensity below specific value needed to be taken...

12 years ago | 0

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image to an array
Why do you wanna write an image into an array. Use reshape if you really want.

12 years ago | 0

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writing more than 1 function in a file
Use local functions See the link <http://www.mathworks.in/help/matlab/matlab_prog/local-functions.html?s_tid=doc_12b>

12 years ago | 1

Answered
STANDARD HOUGH TRANSFORM TO DETECT ELLIPSE AND CIRCLES
A simple solution is for say a circle of radius r. Pick up 10000 (any large number ) values between -r and r and feed them in va...

12 years ago | 0

Answered
problem with alternative way to do imcrop
Select the pixels you want say for image I a cropped region will be I = I(1:x,1:y)

12 years ago | 0

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Answered
how to write such that in matlab
You have to use lagrange multiplier. You can easily understand it from here <http://en.wikipedia.org/wiki/Lagrange_multiplier> a...

12 years ago | 0

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Connected Neighbourhood / Regional Maxima - Image Processing
Hi Sriram, It won't be. You have to see the entire connected component. Look at 3rd column and 3rd row 13 it is connec...

12 years ago | 0

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If I have to minimize a function with 2 variables (f(x,lamda))and I have a condition on one of these 2 variables(lamda>=0), how can I find this variable (lamda)? thank u
Hi Hiba, You can use an iterative method. Start with lambda. Differentiate your equation with lambda. Change lambda on th...

12 years ago | 0

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Answered
Connected Neighbourhood / Regional Maxima - Image Processing
Hi Sriram, 8-Connected neighborhood means the pixels in left,right,up,down,left up, left down,up right and down right. ...

12 years ago | 0

Answered
How to make a reference to multiple subelements of a cell without for loop (to create a plot)
Hi Felix, You have to use cell2mat. It converts your code to matrix. You have knowledge about n so pick up every nth ele...

12 years ago | 0