Thread Subject: How to remove noise in graphics?!

Good day! I am plotting graphs in matlab, but it appears noisy.
 How to perform noise filtering in graphics? need a toolbox? How do I find?

I await any tips. Thank you!

On Nov 24, 10:36 am, "Gesilda " <gesildaflore...@gmail.com> wrote:
> Good day! I am plotting graphs in matlab, but it appears noisy.
>  How to perform noise filtering in graphics? need a toolbox? How do I find?
>
> I await any tips. Thank you!

-------------------------------------
There should not be any noise in the graphics - in your data maybe not
not the plot itself. You'll have to upload a screenshot somewhere
(e.g. tinypic.com) for me to see and believe this. Or there's
something else you're not telling us, like you're not using
export_fig() as recommended in the FAQ and you're trying to brave it
yourself and saving it as a JPG image or something.

What I need is a command or a tool that exists in maltab to filter noise in graphics
>
> -------------------------------------
> There should not be any noise in the graphics - in your data maybe not
> not the plot itself. You'll have to upload a screenshot somewhere
> (e.g. tinypic.com) for me to see and believe this. Or there's
> something else you're not telling us, like you're not using
> export_fig() as recommended in the FAQ and you're trying to brave it
> yourself and saving it as a JPG image or something.

On Nov 25, 7:05 am, "Gesilda " <gesildaflore...@gmail.com> wrote:
> What I need is a command or a tool that exists in maltab to filter noise in graphics
>
>
>
>
>
>
>
>
>
> > -------------------------------------
> > There should not be any noise in the graphics - in your data maybe not
> > not the plot itself.  You'll have to upload a screenshot somewhere
> > (e.g. tinypic.com) for me to see and believe this.  Or there's
> > something else you're not telling us, like you're not using
> > export_fig() as recommended in the FAQ and you're trying to brave it
> > yourself and saving it as a JPG image or something.

First of all DON'T top post.
It makes the thread hard to follow.
Put your replies UNDERNEATH.

Next, your question is too vague to elicit a useful response.

I don't know what you mean by "graphics".
Do you mean a 2D plot as generated by plot?
Or do you mean a 3D plot as generated by surf or contour?
Or do you mean an image?

And when you say "noise", do you mean noise in the data?
Or do you mean inaccuracies in the way Matlab plots the data (which is
what IA interpreted)?

If you're looking for a means of denoising data, then there is no one
routine that will do it.
The method you use depends on the data.
Denoising is an arcane art.

TideMan <mulgor@gmail.com> wrote in message <4e363147-ab42-4217-9b20-11c8696e5368@g21g2000yqc.googlegroups.com>...
> On Nov 25, 7:05 am, "Gesilda " <gesildaflore...@gmail.com> wrote:
> > What I need is a command or a tool that exists in maltab to filter noise in graphics
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > > -------------------------------------
> > > There should not be any noise in the graphics - in your data maybe not
> > > not the plot itself.  You'll have to upload a screenshot somewhere
> > > (e.g. tinypic.com) for me to see and believe this.  Or there's
> > > something else you're not telling us, like you're not using
> > > export_fig() as recommended in the FAQ and you're trying to brave it
> > > yourself and saving it as a JPG image or something.
>
> First of all DON'T top post.
> It makes the thread hard to follow.
> Put your replies UNDERNEATH.
>
> Next, your question is too vague to elicit a useful response.
>
> I don't know what you mean by "graphics".
> Do you mean a 2D plot as generated by plot?
> Or do you mean a 3D plot as generated by surf or contour?
> Or do you mean an image?
>
> And when you say "noise", do you mean noise in the data?
> Or do you mean inaccuracies in the way Matlab plots the data (which is
> what IA interpreted)?
>
> If you're looking for a means of denoising data, then there is no one
> routine that will do it.
> The method you use depends on the data.
> Denoising is an arcane art.










I'M LEAVING THE WELL OF COURSE IS MY GRAPHICS, CHARTS AND GRAPHICS THAT APPEAR TO NOISE OR YOU DO NOT bore you? Appears when the noise graphs and plots, I'M JUST NEED SOME TIP ON HOW TO REMOVE THE NOISE ONLY! UNDERSTAND?
GRAPHS GENERATED FROM A set of differential equations, OK?

On 11/24/2011 1:43 PM, Gesilda wrote:

>
>
>
> I'M LEAVING THE WELL OF COURSE IS MY GRAPHICS, CHARTS AND GRAPHICS THAT APPEAR
>TO NOISE OR YOU DO NOT bore you? Appears when the noise graphs and plots, I'M JUST
>NEED SOME TIP ON HOW TO REMOVE THE NOISE ONLY! UNDERSTAND?
> GRAPHS GENERATED FROM A set of differential equations, OK?

hi;

It is not polite to reply in UPPER CASE, as it sounds like you
are shouting at everyone reading your post.

Here are some links which might help

"Removing Noise from Images"
http://www.mathworks.com/help/toolbox/images/f11-12251.html

"2-D adaptive noise-removal filtering"
http://www.mathworks.com/help/toolbox/images/ref/wiener2.html

Also someone asked for low pass filter, which can be used for
removing noise,may be this thread helps
http://www.mathworks.co.kr/matlabcentral/newsreader/view_thread/314623

I googled "remove noise matlab image" and got
About 2,950,000 results (0.20 seconds)

I think if you have a _specific_ question, you'll get much better answer
than a very general question.

good luck removing the noise from your image.

--Nasser

On Nov 24, 2:43 pm, "Gesilda " <gesildaflore...@gmail.com> wrote:
> I'M LEAVING THE WELL OF COURSE IS MY GRAPHICS, CHARTS AND GRAPHICS THAT APPEAR TO NOISE OR YOU DO NOT bore you? Appears when the noise graphs and plots, I'M JUST NEED SOME TIP ON HOW TO REMOVE THE NOISE ONLY! UNDERSTAND?
> GRAPHS GENERATED FROM A set of differential equations, OK?

-------------------------------------------------
Sorry but I still do not understand. Now it's even worse. What does
"leaving the well" mean? You haven't answered anyone's questions yet
and that is where is your noise - are you seeing it in the graphics
(like your monitor is going defective or you think MATLAB just isn't
displaying properly for some reason) or is the noise in your data (and
MATLAB is displaying correctly)? Which is it?