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scaramanga

28 total contributions since 2010

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Question

interpolation of a binary map
Hi All, After performing a level set contour detection on an image I create a binary Map (1 on a contour, 0 otherwise). For c...

4 years ago | 1 Answers | 1

1

Question

Applying a non rigid transformation to an image
hi everybody, do you know how could I apply a non rigid transformation to an image ? Is there any way to do so ? Thank yo...

4 years ago | 0 Answers | 0

0

How to make a signal more flat ?
It won't be enough. I give you a picture of my signal : http://www.imagup.com/data/1157449109.html, Basically I want that it flu...

4 years ago | 0

Question

How to make a signal more flat ?
Hello, I have a signal which looks like a dome and I would like to make it flat (hence reducing its amplitude). I can reduce ...

4 years ago | 3 Answers | 0

3

Question

Interactive colormap shift/Workspace
Hi to everyone, When I'm displaying an image, using imagesc for instance, I use the interactive colormap shift to adjust the...

4 years ago | 0 Answers | 0

0

Noise estimation in an image
By the way, estimateNoise yields the standard deviation (and not the variance).

5 years ago | 0

Question

Noise estimation in an image
Hello, When I want to estimate the noise variance of an image, I use to select an homogeneous region and compute the variance...

5 years ago | 1 Answers | 0

1

Posted

Undefined function or method 'guessdelim' for input arguments of type 'char'. ?
Hello to everyone, I built a function in matlab 7 r14 and when i upgraded to matlab r2008b, i can no longer use the embedded f...

5 years ago | 1472 views

Responded

Re: 3D polynomial fitting
Hi John, Thank you for your answer, I didn't understand what 'constant' stood for, now the model works well thanks to you ;)

5 years ago | 7966 views

Posted

3D polynomial fitting
Hi to everyone, I'm trying to fit a 3D dataset with a polynomial regression. I've used the function provided by "John D'Errico"...

5 years ago | 7966 views

Responded

Re: How to generate the same pseudo random sequence ?
It's working now thank you for your help!

6 years ago | 4689 views

Responded

Re: How to generate the same pseudo random sequence ?
stream = RandStream('mt19937ar','Seed',200); % Seed :200 s=rand(stream,5,1); % <- pass stream as an argument to rand Actually t...

6 years ago | 4689 views

Posted

How to generate the same pseudo random sequence ?
Hello, I'm trying to generate the same pseudo ramdom sequence at each computation of my algorithm, then i do the following st...

6 years ago | 4689 views

Responded

Re: A function that can convert a string into number and vice versa ?
This is what I was looking for thank you !

6 years ago | 1888 views

Responded

Re: A function that can convert a string into number and vice versa ?
No for example I want to convert the string 'paul' into a number, and convert back this number to 'paul'. Maybe the only way is ...

6 years ago | 1888 views

Posted

A function that can convert a string into number and vice versa ?
Hello to everyone, I'm currently looking for a function maybe already embedded in matlab that would allow me to convert a strin...

6 years ago | 1888 views

Posted

Problem with Spectrum scope on simulink
Hello to everyone, I'm currently having a problem, when I use Spectrum scope it does sometimes work when i connect it to a wire...

6 years ago | 1610 views

Responded

Re: Conflict between subplot and imagesc within a GUI.
Yes I meant all the panel, sorry ....

6 years ago | 1964 views

Responded

Re: Conflict between subplot and imagesc within a GUI.
Unfortunately clf (as well as delete) clear all the figure i.e. my GUI window and if I use subplot(1,1,1) for the second button ...

6 years ago | 1964 views

Posted

Conflict between subplot and imagesc within a GUI.
Hello to everyone , I'm encountering a problem with matlab using the GUIDE, I have created two push buttons, when I push the fi...

6 years ago | 1964 views

Posted

What's the difference between 'upfirdn' and 'conv' ?
Hello to everyone, I try to figure out what's the difference between upfirdn and conv regarding the convolution operation. I...

6 years ago | 1397 views

Responded

Re: How can I find the maximum value of a sine wave ? (Simulink)
Thank you for your answers. I tried with another method by putting a buffer and store all the signal and computed the extremas I...

6 years ago | 3745 views

Posted

How can I find the maximum value of a sine wave ? (Simulink)
Hello to everyone, I'm currently experiencing a problem with Simulink (I'm a newbie). I generate a sine wave during 2 second (s...

6 years ago | 3745 views

Posted

What does "if ~" stand for ?
Hello to everyone, I have seen on a program the following statement : ' if (~Value) ---conditions end ' What is this condition...

6 years ago | 2139 views

Posted

How to 'detect' zeros between two non-zeros numbers ?
Hi everyone, I'm trying to build an algorithm so that i could know if in any vector there is a zero (or many) between 2 non-ze...

6 years ago | 1323 views

Posted

Formant distribution plane on matlab ?
Good evening to everyone, I'm encountering a problem. I have a data set where there are 4 formants recorded for 10 vowels. I s...

6 years ago | 1553 views

Responded

Re: Pick random lines of a matrix ?
Thank you very much, your code is optimal.

6 years ago | 4914 views

Posted

Pick random lines of a matrix ?
Hello everyone, I have a matrix called F (size : 152 4) and i would like to pick randomly 53 lines among the 66 first lines and...

6 years ago | 4914 views