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18
votes
2answers
502 views

Creating graph out of particles images

I have recently started learning how to use Mathematica's brilliant image processing tools, and the image I've taken as first example is the following (source): So far I've tried to first use ...
49
votes
4answers
4k views

Mollweide maps in Mathematica

Context In my field of research, many people use the following package: healpix (for Hierarchical Equal Area isoLatitude Pixelization) which has been ported to a few different languages (F90, C,C++, ...
5
votes
4answers
1k views

Creating a realistic, photo-like 3D effect from an image or document

Suppose I have an image or a document, provided in a high-quality PDF file. You can open and view it in a PDF viewer, but then it has a kind of static look: it's not something tangible, it's just an ...
2
votes
1answer
91 views

Plotting large scale image embeddings

I'm looking for help making publication-quality graphics for visualizing 2D embeddings of image datasets, so that they look like this: These two-dimensional embeddings of thumbnails (sometimes with ...
22
votes
2answers
1k views

How to project 3d image in the planes xy, xz, yz?

Some idea of how to do something similar to the image, but with any 3d object
0
votes
0answers
63 views

Pixel-wise image manipulation

I downloaded an image from a website and imported it to Mathematica ...
8
votes
2answers
391 views

Branching points detection in processed image

I want to get the branching coordinates from a computer-generated image like this one: After SkeletonTransform and Pruning, I ...
14
votes
1answer
6k views

Image Processing: Finding Orientation and Position of Symmetry Axes

Background I'm currently toying with Principles of Design by Charlotte Jirousek in order to learn some basics of image processing. As main principals she suggests Balance, Proportion, Rhythm, ...
6
votes
2answers
574 views

How do I transform a rasterized graphic's coordinates back to its original ListPlot data coordinates?

From this question I successfully made an elliptical fit for my data. However, when I try and collect the datapoints within the ellipse via this question the coordinates of my ellipse correspond to an ...
1
vote
1answer
110 views

Numeric data from a color map

Importing the following image (without a scale): and knowing the extreme temperatures, is it possible to obtain the graduated scale? Also, it would be interesting to get the temperatures of all the ...
43
votes
1answer
14k views

How can I draw a Homer with epicycloids? [duplicate]

You may have seen this video: https://www.youtube.com/watch?v=QVuU2YCwHjw. How does this work, and how to do it with Mathematica?
2
votes
1answer
158 views

Overlap two images and give movement and the result record it in an animated gif

I need to put the circular image 1 in the image with the hole 2 (and cover the gap) the idea is to create an animated gif that shows the image 1 turning to the right and image 2 to the left in a size ...
12
votes
1answer
491 views

Converting image into graphics

I have a black-white image, but it is rather blurry so I was thinking of converting it into vector graphics so I could do some coloring. This is the image: ...
0
votes
0answers
54 views

Can Mathematica convert PDF into QR code too?

I recently learned that we can embed a whole PDF file into QR codes. But many online sites are not free for this service. Just wondering if Mathematica can do this? Note I don't want to convert the ...
3
votes
2answers
180 views

How to extract graph from microscope image?

I have a microscope image of actin filaments and I'd like to extract the geometry of the bright lines into a Graph object: Here's what I have so far, using the ...
13
votes
1answer
1k views

How to make a Nebulabrot?

A Nebulabrot is a generalization of the Buddhabrot, a fractal rendering technique related to the Mandelbrot set that sort of looks like a meditating buddha. The Buddhabrot rendering technique was ...
10
votes
1answer
538 views

How to protrude a 2D image wrapped on a 3D surface

There are a few posts on this theme: How to make a 3D globe? How to render a 3D tubular graphics from a 2D image path How to extrude a 3D image from a binary 2D image However I can't quite piece ...
6
votes
3answers
126 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
4answers
11k views

Saving high-quality graphics through commands

Say I make and display a graph in a Mathematica notebook: graph = CompleteGraph[100] If I drag the corner of the graph to increase its size, and then save it to ...
1
vote
1answer
62 views

Import two Gif files together and play them with just one button

I have two gif files and I want to import and play them at the same time with just one play button. The target is to compare them easily. Is there any way?
32
votes
1answer
4k views

How to generate image like QR code with Mathematica

How to generate such form of QR code which displays an image itself but is still scan-able?
1
vote
1answer
142 views

Remove a specific color (black) within an image [closed]

I need the image to be totally blank, so the black must disappear
97
votes
3answers
12k views

Recovering data points from an image

Unfortunately, some data can only be obtained in picture form (Japanese publications anyone?). Since this cannot be worked with, it has to be converted to a dataset that can; I was wondering whether ...
2
votes
3answers
261 views

Masking an image with an annulus

I have an image where I would like to do 2 things: a) Put a disk of radius r on an specific $\{x,y\}$ position on the image such as the result is the original image within the disk and black color ...
77
votes
4answers
42k views

How to create a new “person curve”?

Wolfram|Alpha has a whole collection¹ of parametric curves that create images of famous people. To see them, enter WolframAlpha["person curve"] into a Mathematica ...
11
votes
1answer
175 views

How to make Texture unblurred?

This post is related to this post, But somewhat different. Since Wizard focus on alpha channel, and didn't got an answer. So I made this post. My system is Windows 10, and Mathematica 11.2 If I run ...
5
votes
4answers
956 views

How to double (or triple) each element of equation?

x^2/3+y^2/9==1 (0.5x)^2/3+(0.5*y)^2/9==1 Looks at above two equation,I multiply 0.5 to each element of second equation,which means when plotting, each point ...
5
votes
2answers
1k views

Color mixing or blend

Color mixing seems not only one type. Here is RGB_color_model I wrote this one: ...
3
votes
1answer
171 views

WordCloud out of Images or TeX

Is it possible to use the WordCloud function to create a word cloud out of LaTeX expressions or images (with transparencies) representing equations?
1
vote
0answers
33 views

Prevent Semi-Transparent Pixels in Export

I've noticed that when I export plots in Mathematica without a background, a lot of the text ends being made of semi-transparent pixels. For example: ...
34
votes
1answer
1k views

Drawing Clifford Attractors in Mathematica

I came upon the "Clifford Attractor" today, which are equations of the form: $$x_{n+1}=\sin(a\ y_n) + c \cos(x_n)$$ $$y_{n+1}=\sin(b\ x_n) + d \cos(y_n)$$ They create some incredible images by ...
2
votes
2answers
315 views

Creating a custom e-seal

Well, the question is obvious: how can I create the following e-seal (with the rotated wrapped text, inserted image etc) with Mathematica? The central image is the following So, the following ...
1
vote
1answer
318 views

Extract data from an image of a density plot?

I have a density plot in image form and would like to extract the data points from it. How would I go about using Mathematica to accomplish this? My ideal output ...
3
votes
1answer
190 views

Generate coronograph speckle pattern in mathematica

How to simulate the radial coronograph "speckle-noise" in this image? The 3 circled objects are exoplanets. Their star has been blocked out by a coronagraph, resulting in optical noise known as ...
3
votes
2answers
277 views

Labeling elements of a grid

Let's create a simple $3 \times 3$ grid of images ...
1
vote
1answer
882 views

Adding text in images

My question is simple How can I add text in a figure like the following? In particular I want two labels: one at the top "Label text 1" ()just above the image and one at the right side (just outside)...
2
votes
1answer
83 views

reproduce the plot from image

I need to reproduce the gray plot (H4-WT) of below image.Is there any way for doing that in Mathematica?
48
votes
7answers
3k views

Character edge finding

The following line of code finds the edge of a character: ...
1
vote
0answers
194 views

Make Person Curve from a Picture

I recently read this; http://blog.wolfram.com/2013/05/17/making-formulas-for-everything-from-pi-to-the-pink-panther-to-sir-isaac-newton/ In this post, newton curve is made by using the image "...
6
votes
2answers
1k views

Image with grid lines

I have an image of a certain size. img = Image[source, ImageSize -> escala]; I want to add a grid with a scale (0 to maxX from left to right and 0 to maxY ...
2
votes
2answers
213 views

graphics - Overlaping Image in red and green scale, mixing pure colors

How can I overlap/merge two density plot (in attach) using Mathematica. One image is in red scale and the other is in green scale. In theses two images the lowest value is white (background) and the ...
84
votes
9answers
17k views

How to make an inkblot?

How to effectively create a polygon that looks like a realistic inkblot? So far, I could come up with this (borrowing from Ed Pegg Jr.'s Rorschach demonstration): ...
30
votes
4answers
3k views

How to extrude a 3D image from a binary 2D image

I'm trying to extrude a nice 3D form from the 2D binary image below using the code posted, but I haven't had any luck in figuring out the error that's keeping ...
1
vote
1answer
133 views

How to add the picture to graph without overlapping?

I want to add some pictures to my plot and point them to especial part of the graph with the arrow (or maybe something fancier) but I got problem the canvas of my pictures are too big and its cover ...
1
vote
1answer
307 views

Positioning images in Graphics using Inset

I need to position a certain part of a photographic image at the origin of a plot in Graphics. I am currently using Inset[image, {0,0}, {xpos,ypos}, size] and ...
2
votes
3answers
484 views

Visual superposition of two images

In a previous question Karsten 7. proposed an elegant image-manipulation solution on how to overlay two images. However in the following case the method does not properly work and needs refinement. ...
10
votes
2answers
2k views

Pixel perfect world map with no border lines

I'm trying to build a real world map in Minecraft and want a pixel-perfect raster image I can copy pixel for block. How can I modify ...
8
votes
1answer
212 views

Weird behaviour of HighlightImage—bug or not?

For background, check my answer under this question. It is clearly stated in the documentation of HighlightImage that the 2nd argument,...
14
votes
2answers
424 views

How to retouch (smart fill) photo image?

Can the program proposed by Alexei Boulbitch at the post of Custom arrow shaft be adapted to retouch an image in setting a mask arround the part one desires to disapear? This is only a suggestion, ...
1
vote
0answers
52 views

Magnify Part of a 3D Graphic [duplicate]

I have a 3D Graphic built, and I want to magnify part of it. I would prefer a circle or ring-shape that can be placed anywhere in front of a 3D graphic that would magnify it. Ultimately, I want to ...