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Questions tagged [smoothing]

The tag has no usage guidance.

1
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1answer
50 views

How to make the ListContourPlot3D smooth and closed?

I am struggling with making my plot in ListContourPlot3D smooth and closed. I have seen so many posts regarding the same issue but in other functions, the solution of which can not be applied to ...
0
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3answers
64 views

Smoothing random data with MovingAverage

If I have this kind of data: ...
3
votes
1answer
72 views

Changing the averaging window dynamically in a moving average

I have some temperature decay data (2k points) that is very noisy for large time values. I don't want to do much or any smoothing to the data early on, but would like a large window to average over ...
1
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0answers
28 views

Smoothing the surface created from a set of points

I have a question about "smoothing" the surface created on the basis of a set of points. I would like to get an effect similar to that from the Documentation Center. enter link description here The ...
0
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0answers
38 views

Smoothen curve in ListDensityPlot [duplicate]

I have a list of points of dimensions (150,101) and I am plotting them in a ListDensityPlot. I am happy with the command and how the data is represented, but I ...
2
votes
4answers
253 views

Smoothing noisy data

I have this data shown in picture 1 below and I want to filter it. I tried some filters but I couldn't get good results. seems that I didn't choose the best parameters for it. I want to smooth my ...
6
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3answers
108 views

How to find the boundary of a region from a dataset

I have a dataset which supposed to show some regions. For example ...
17
votes
2answers
494 views

Smoothing 3D contours as post processing

Context Following this question (and great answer!), It would be nice to have a function which also smooths 3D contours plots once they have been done. There are various solutions which involve ...
14
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3answers
338 views

Generic contour smoothing with shading

Context It would be nice to have a function which smooths contours plots once they have been done. There are various solutions which involve smoothing the data before making the contours, but here I ...
2
votes
1answer
105 views

Smoothing EdgeDetect - image processing

I have to make a program that analyzes the image of saw tooth and later find the function that can describe it (or just part of it). Now I have a problem with smoothing the edges detected with ...
1
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0answers
85 views

Smoothing 2-d Functions [closed]

I have a large array of triples (x_i,y_i,f(x_i,y_i)) The the values x_i and y_i are equidistant variables and the function values f(x_i,y_i) are results of a Monte Carlo calculation which contain ...
0
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2answers
302 views

Interpolating noisy data

My data looks like this: https://pastebin.com/n59CTB3L Or if displayed in log chart: I want to create an interpolation of the data that would remove most of the noise. What are some good ways to ...
34
votes
1answer
746 views

How to perform Loop subdivision on a triangle mesh with Mathematica?

(Cross posted on Wolfram Community) Every now and then, the question pops up how a given geometric mesh (e.g. a MeshRegion) can be refined to produce a (i) finer ...
5
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2answers
138 views

Reshape interpolated data

I want to reshape/smooth the following data: ...
13
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3answers
504 views

Improve the mesh smoothing procedure

My question is inspired by this answer about meshing with quadrilateral elements. The following functions are my (naive) try of implementing the Laplacian smoothing. I find interior nodes in the mesh ...
2
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0answers
87 views

DistributionChart and kernel smoothing: preventing negative numbers

I am visualising rather scarce data about size distribution of certain objects (here - oil basin areas on continents, to be specific). There is no raw data, but some already processed quantities, for ...
1
vote
1answer
340 views

Interpolating or smoothing list plot

I am currently trying to interpret my FTIR data. But due to a lot of background noise, my spectrum is quite spiky and fluctuating at some points. I want to try to smoothen my function to make the ...
10
votes
2answers
697 views

How to get a smooth ridge from a binary image

I always have this demand,but Mathematica cannot implement this perfectly for me.For example,I have such binary image ...
3
votes
3answers
184 views
2
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2answers
202 views

Smoothing a cusp in plotted data

Here are my data points: ...
11
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3answers
944 views

Interpolate the noisy data

I have some noisy data ...
8
votes
0answers
199 views

Smoothing the gradient of the potential function from a finite element calculation

The results from a finite element calculation using NDSolve are, in this case, a potential function expressed as an interpolation function. To get values from the potential function it is necessary to ...
5
votes
4answers
393 views

How to get a smooth outline

I have a outline image img=Uncompress[FromCharacterCode[ Flatten[ImageData[Import["http://i.stack.imgur.com/cc0Mt.png"],"Byte"]]]] This is current method <...
7
votes
1answer
273 views

What exactly do DerivativeFilter and RidgeFilter do with the scale parameter?

Both DerivativeFilter and RidgeFilter take an optional parameter σ to indicate the scale of ...
1
vote
2answers
258 views

Smooth curves in a raster image

I have a *.bmp image, e.g. this one: I need to smooth boundaries of the thick curves and save it in a vector graphics form. Is there a simple way how to do that in Mathematica 10? I know it is ...
0
votes
1answer
125 views

Smoothing of oscillatory function

I have a pretty gruesome expression of which I need to do the inverse Fourier transform twice (over two coordinates ($\omega$ to $t$ and $q$ to $r$)). $f(q,\omega)= \frac{ 2 \sqrt{\pi} \sqrt{\frac{...
0
votes
2answers
846 views

How to obtain a smooth plot? [closed]

I have obtained some simulation result. But the number of realisations is small as each realisation is expensive. I have the data. for X-axis: ...
2
votes
1answer
103 views

Fixing ListSliceContourPlot3D

I am trying to plot a sort of 3D anisotropic convection-diffusion equation. I want to use ListSliceContourPlot3D to show the solution u[t,x,y,z] at various time ...
10
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6answers
481 views

Faster way to do this smoothing?

Looking for a pleasing way to smooth a particular dataset I found something I like but it is rather slow to compute: I take the mean of a series of MedianFilter ...
5
votes
5answers
354 views

Replace elements in list larger than x times the magnitude of the previous value with the mean of its neighbours

Say I have some list a. It is an increasing, noisy dataset; something like $a x + X$ where $X$ is a noisy variable. This is as expected from what I'm interested in. However, once every so often my ...
9
votes
3answers
302 views

How to smoothen a surface given as a mesh?

I am trying to "smoothen" meshes. For example, if starting from a cuboid, I would like something similar to a rounded cuboid. There are many ways to smoothen a surface, but I am not going to give a ...
0
votes
2answers
137 views

I want to plot 3Dhistogram from my data?

I have the data file like this: {{16.3009, 5454}, {16.2118, 5463}, {15.8156, 5414}, {15.9585, 5515}, {16.2253, 5459}, {16.284, 5419}, {15.6112, 5389}, {15.7221, 5403}, {15.509, 5445}, {15.6993, ...
0
votes
0answers
177 views

How to make lines more smooth in Graphics3D? [duplicate]

I drew using Graphics3D, but I found the quality of output is very low, like this:. I wanted to improve the quality of the output, make it more smooth. But I can't ...
0
votes
0answers
262 views

How to get smoother curves when plotting with mathematica 8.0?

Using the following line of code, I am trying to plot a few curves side-by-side. However, it turns out that the output curves are not that smooth as seen from the ups and downs (oscillating pattern) ...
8
votes
1answer
1k views

Smoothing out data points in a ListDensityPlot

I stumbled upon this problem when I was trying to make some nice smooth ListDensityPlots of my numerical data. In short, my problem is that I let Mathematica plot two copies of basically the exact ...
6
votes
4answers
418 views

Plotting multiple lists together with their avarages in a single plot

I have as example multiple lists of x data (in mm) http://pastebin.com/7xwgGDsd which I want to plot against time (in sec). ...
8
votes
3answers
515 views

Derivative of contour in ContourPlot

Sorry to bring this question up again, since there are many similar questions on the site. I use to think this is a easy job to do, because for the worst case I can follow the answers on this site. ...
18
votes
3answers
5k views

Smoothing ListContourPlot contours

I have some data of type {{x1, y1, f1}, {x2, y2, f2}, ...} and want to do ListContourPlot. However, there is a problem that the ...
5
votes
2answers
5k views

Creating Optimal “Smoothed” Contour-Type Plots (X,Y,Z) Using Mathematica 8.04 [closed]

Update: data here Here is a contour plot produced in the SAS program: In this plot, variable 23405 forms the X axis, variable 20201 forms the Y axis, and outcome variable 50502 forms a pseudo Z ...
48
votes
7answers
3k views

Character edge finding

The following line of code finds the edge of a character: ...