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

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

Answered

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...

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

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

Answered

Noise estimation in an image

By the way, estimateNoise yields the standard deviation (and not the variance).

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

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