# Questions tagged [image]

Tag for questions about bitmapped graphics, particularly those using the Image function.

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305 views

### Image processing: Removal of two spots in fundus images

I have many hundreds fundus images of the human eye. The yellow arrow points to two spots which I I want to remove. The final result should be a perfect circle. The removed area should be ...
273 views

### Repairing a panorama

I was on a cruise and the panorama I took was warped due to the ship rocking: I'm hoping to correct this so that the horizon is level. Here's the full resolution image: ...
79 views

### Glue a series of images as textures on various points of a sphere

Using the techniques outlined in the answers to this and this questions, it's possible to map images as textures on the surface of a sphere or other object. These questions, however, consider the ...
28 views

### WebImageSearch for images of high resolution?

Is there a way to specify a minimal image dimension when using WebImageSearch? Since it costs money I don't want to do a large search and then filter the results. ...
62 views

### Where to find information about models, data and labels used by Image/AudioIdentify?

I am thinking about using Mathematica 12's ImageIdentify and AudioIdentify functions for an interdisciplinary research project. The social science part of it requires to describe a little bit the ...
75 views

### Converting video file to list of images to analyze pixels of each frame

I am trying to recreate the following physics experiment to analyze chaotic motion: https://www.researchgate.net/publication/275890532_Tracking_the_Motion_of_a_Double_Pendulum_Using_Mathematica I ...
66 views

### How can I save an image after manipulating it? [closed]

I need to extract a picture from a red square for further transformation over it.
116 views

### How is that distance between images calculated?

The command ImageDistance[Plot[x^2, {x, 0, 1}, PlotRange -> {0, 1.01}], Plot[x^2 + 0.01, {x, 0, 1}, PlotRange -> {0, 1.01}]] produces ...
127 views

### Remove background image and redraw lines in black

I do not know if the title is correct. The image that I upload has liked me a lot because of the characteristic that no matter the angle it seems that it is looking at you, you could indicate me how ...
301 views

### Converting a list of colors into an image

I want to manipulate colors, and merge the resulting vector and rasterize it into an image, controlling the resolution of the pixel. E.g. I tried to: But what I would like to have is an image of 3 ...
130 views

There have been many posts about generating and cracking Captchas. However, I have never seen a post or answer concerning one the more recent versions of re-captcha images - a "word morphing effect" ...
58 views

### Image to coordinate system

May I kindly ask you to teach me how to align the symmetry axis (in blue) of the attached picture along the Ox and/or Oy axis. The axis of symmetry is slightly off (rotated to the right). In other ...
108 views

### Text position inside jpeg file

I tried the following line in order to write a text in my image. p1bis = Labeled[p1, Text[Style["(8)", FontSize -> 52]], {{Top, Left}}] I get the following ...
304 views

### Drawing Circle using Image[Graphics[]] - incorrect coordinates

I want to draw a circle with center {x,y} in an image. I use the following code: ...
45 views

For specific filetypes, e.g JPG, GIF, etc. I would like to get a list of available options for use in Import and Export. Unfortunately, the obvious thing doesnāt work: ...
109 views

### How do I get a beautiful image overlay from data and a model function?

I have a set of experimental data that I wish to make into a density plot. Then I have to overlay an image of a model function f(x, y, z) = Sin(x/z)Sin(y) on the ...
92 views

### Text beside image

I have a lot of text in my Notebook (Format>Style>Text), and I would like to have the full width text, then insert an image on the left, and have the text continue down the right side of the image, ...
2k views

### How to convert a 4-channel image to 3-channel image in an elegant way?

I have a 4-channel image (RGBA). I want to reduce its channel count from 4 to 3. The method I am using currently is to Right click and Save as a .png file. After ...
72 views

### Help find rectangles with numbers [closed]

I have this picture 1) Result must be like that 2) . But I can achieve it only if have good numbers with picture like that 3) With first image I have result: 4) I can't recognize numbers with ...
39 views

### ColorFunction in SphericalPlot3D fails with ImageValue

I would like to texture and deform a sphere with with images using various mapping functions between x,y and phi,theta. I figure I should start with $f(phi,theta)=(x,y)$ as a test case. However, I ...
1k views

### How can I make a graph network from image of granular packing?

I have an image from experimental data of granular packing. I need to characterize the packing as a network. The network consist of node (center of granular particle) and edge. Two node are connected ...
78 views

### How to do your own Wolfram Function-of-the-Day style GIF?

Anyone know how Wolfram tweets out GIFs of a notebook running some code like this one? https://twitter.com/WolframResearch/status/1083739334879182848 It's a lovely way to show how to build/iterate ...
40 views

### interface problem for image recognition

I made the following code that should recognize the image imported from the pc. If I do it for the first time it's fine, but if I load a second image it leaves me the name of the previous one. You ...
192 views

### Importing a raw image

I have raw images that I can import and view with ImageJ. They are the output of a program which I don't have the source code for, so I'm stuck with the output format. They are imported as follows ...
541 views

### Fill in an incomplete outline of an image

I have an outline which I have extracted from an image, which may well not entirely closed, for instance: I now want to fill the inside of this, as another image, using the convex hull if it is not ...
33 views

### Graphic scaling of neural network SummaryGraphics

Same funky scaling occurs when dragging the SummaryGraphics with the mouse; so, the issue is in the graphics itself not in the ...
113 views

### How can one get the axis of symmetry of the following egg profile [closed]

This is the binary version of the profile of an egg. Would you be so kind and let me know how to get the axis of symmetry of this profile. Thank you!
106 views

### Blend modes for composing images?

I'm looking for a way to combine two images with standard image blending methods like Darken, Color Burn, Color Dodge, Soft Light. Is there a way to achieve these with ...
147 views

### Best solution to insert text at defined position into image

What is the best solution to insert text at defined poition into image? I saw this question/answer but it does not help me for my examples below. I tried the following and find some strange ...
550 views

### Deleting noisy data from a plot (manually) and export the best remaining data

I have the following temperature time-series. As you can see it contains very very noisy points in some periods (Fig.A). I tried to approach the best data(the black one in the center) based on the ...
119 views

### Image Processing: Detecting certain edge features over varying contrasts

Images and description- ā¢ The images are obtained from the frames of a video (>1000 images) ā¢ As shown, there are contrast variations between the images ā¢ The bubble shifts horizontally ...
114 views

### How to pixel constrain Button Appearance given as images?

Using the images: ...
186 views

### How to properly copy an image from Mathematica?

I want to copy an image in mathematica to use in another program. E.g: im = ExampleData[{"TestImage", "House"}] When I evaluate ...
84 views

### Confusion in the position of image coordinates

I am struggling to work out how image coordinates are calculated and how to be consistent when finding particular points in an image using these coordinates for further analysis. I don't think it is ...
433 views

### How to extract Bitmap image from SQL records?

I'm trying to extract image from records of the MSSQL demo database NorthWind with this codes, ...
47 views

### issue with ImageEffect; EdgeStylization

I have a issue with ImageEffect/EdgeStylization. After importing a .jpg-file like test = Import["C:\\........\\DSCN0018_v1.jpg"] The result is: Then I take a ...
34 views

### ReplaceAll does nothing with the rgb values of a picture [closed]

In the book "Programming with Mathematica: An Introduction" at the beginning of the chapter on Patterns and rules an example is given where the colors of an image are transformed according to ...
372 views

### How do I dynamically draw an image?

Suppose I have some two dimensional list. For example: list = Partition[Range[0, 48], 7]; And I have some function that assigns a colour to each entry of the ...
113 views

### Mathematica exporting issues with Row[]

I've had this issue for quite awhile - and it's quite frustrating. When publishing papers, we try to get all of our figures in .pdf for obvious reasons. Usually, Mathematica exports to .pdf just fine, ...
88 views

### Smoothing a image while retaining the edges

In my previous post here it is mentioned that using ImageResize before ImageGraphics will increase image quality of the final ...
75 views

### Random points from an image using a BernoulliDistribution

I am a Mathematica newbie. I need to sample random points from an image which I have stored in a variable img as: ...
31 views

### save each picture individually to individual jpg file (export image) [duplicate]

This piece of code returns 10 pictures all at once as output. However, I would like to save each mandala picture file separately. So design one will have picture1.jpg, design two will have picture2....
52 views

### Scraping Images that are Directly Embedded in a Webpage or Dynamic?

I need to scrape URLs for photo albums like Flickr and Facebook for images from a certain event. I'm trying to use Import["link", "Images"], as shown at https://...
59 views

### Suppressing non-deterministic behavior in Image

The following issue is experienced in Mathematica 11.3 on Linux (debian 9) but I am pretty sure it was already present in version 10 on Linux. The expression ...
71 views

### Adding an Image at a specific place on an existing image

I have created the following PDF: Basically an image, with a description underneath and a space to take some personal notes: ...
141 views

### Why is the color changed after applying ImageData?

I have an image square.png as below:- I imported the image as ImageSquare, and then applied ...
48 views

### Identifying overlapping incomplete squares in image

I am trying to align my device and markers automatically using positioners driven by Mathematica. The camera feed looks like this: The device is the black square with gold electrodes. The markers are ...
33 views

### PlotRangePadding -> 0 still leaves 1 pixel border

The following should create a 50x50 image named /tmp/nopad.gif with mostly random colors and a red border: ...
296 views

### How to recreate this 3D plot?

In other languages, one can make a FeaturePlot3D-esque graphics where the inset images look realistically three dimensional. Meaning that they are smaller when farther away (and also hazier). So how ...