Questions tagged [image]

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

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34 views

How can I plug something into GetCoordinates and make an interactive function from it? [closed]

This question is somewhat similar to this one: How can I show cursor coordinates as I move the mouse over a contour plot? Perhaps it is only a small detail which I am missing. I read in an image from ...
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0answers
35 views

Change in ComponentMeasurements, HighlightImage, or Epilog for Version 12?

A convenient way to check the results of ComonentMeasurements is to show the results using Epilog. However, one of these ...
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2answers
323 views

How to recreate this image warping effect?

I'm looking to create image warping effect that looks like this animation, which resembles a misshapen magnifying glass being moved over a background: Not sure where to start, but here are some ...
14
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2answers
1k views

Smoother jelly / water effect on an image

I'm trying to achieve a jelly / water surface effect. I'd like it to be a bit smoother. Here I am taking a triangulated rectangle and perturbing all points by a little random noise for each frame. ...
5
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1answer
64 views

Incomplete web image scraping

Occasionally when I scrape images from a webpage, such as: Import["https://www.freeart.com/gallery/m/mondrian/mondrian.html", "Images"] only a ...
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1answer
89 views

Making features of an image more prominent

For the image below, would like to make the heavy black downward sloping lines more prominent and the fine gridlines in the background less prominent. Also, would like to provide operations for the ...
3
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2answers
218 views

How to create this image with the current colors and as a mesh?

I need to create this image bigger with that coloring, and also as a mesh or wire structure, please help me. I tried to connect the dots, but it didn't work and I deleted it There is some command ...
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2answers
52 views

Composition of images with different dimensions

I created a code to make an image composition ... ...
2
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1answer
59 views

How to remove the parallelepiped that encloses the writing or make it invisible?

I have this code that I found somewhere and I love what it does, I've been checking the "line" command to remove the line or make it invisible but I can't get it, and the other part of the ...
2
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1answer
77 views

Create concentric circles with numbers inside

Hello there if you can give me a hand I want to create and export to pdf the following figure, which if you realize forms the multiplication table. The idea is to be able to control the central number ...
2
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1answer
107 views

How to import and cut n images in 6 parts hopefully proportional to the written and export them to a directory?

I tried to get it well formatted but I won it I hope the question is understood I'm using the google form which allows you to do multiple choice tests, if they were language no problem, the problem ...
5
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2answers
216 views

Adding contour to images

I intend to optimize my work by adding an outline to my images automatically. I'm leaving this image as a reference for testing: I can make an outline of the image, but with poor quality ... ...
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1answer
25 views

Rasterizing an equation makes it low res

I've checked some quick tutorials to export equations as images, and all of them use the function Rasterize, but when I try to follow this method I get a very low res image of the equation. Can anyone ...
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56 views

Realistic and stylistic Image and Video corruption effects

I'd like to produce a video that looks 'corrupted' in some way, ideally like the sorts of MPEG corruptions you see occasionally. See this for examples: https://www.youtube.com/watch?v=i-bz21deEeY At ...
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2answers
85 views

How can I find all the rectangles in an image when they overlap?

When I apply MorphologicalComponents to images like the one below (which consist of white rectangles laid on a black background), I get a single object returned, as ...
3
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1answer
94 views

Is there a more practical way to remove backgrounds from a list of files in a folder on my computer?

Is there a more practical way to remove backgrounds from a list of files in a folder on my computer? Example: Imagine a folder with three image files... Unfortunately I waste time manually renaming ...
4
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1answer
90 views

How to combine image in specific positions

Daily I make an image composition with background (background) in alpha channel in the following dimensions: 558px (length) and 465px (height) ...
7
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5answers
378 views

How can I count the color pixels in each partition of the image

I have a image of 1000 x 1000 pixels of which I have made 5 x 5 partitions. After that I am looking for a way to count number of color pixels in each partition. Thanks in advance for help. ...
2
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1answer
59 views

Reciprocal Coordinates in discrete 2D Fourier

Is there a way to obtain the transformation of coordinates along with the Fourier transformation of a discrete data set? Say I have some pixelwise information ...
2
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1answer
29 views

ImageForwardTransformation always puts origin at lower left

I am trying to create a notebook which will graphically display the effect of simple geometric maps, for the purpose of teaching linear algebra. Here is what I thought would work. I created an image ...
2
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0answers
49 views

Getting an image from the Intel RealSense Depth Camera

Does anybody know how to make the "Module Depth" of an Intel RealSense camera work in Mathematica 12.0? I can use the "Module RGB" with ...
4
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1answer
79 views

How to separate elements from an image

I have this file that will always have a white background and I would like to separate the elements into separate files, but I don't know which function to use. This is the file: ...
5
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1answer
109 views

Embed a rose flower image in 3D space with axes labeled in UTF8

I am trying to create an image in which a rose flower image in a 3D space with axes labeled in UTF8! Labels don't render correctly and not sure how to put the image at say the original of XYZ space. <...
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0answers
73 views

Hidden Metadata in DJI drone .JPG

I have imported a JPG file with MetaInformation (Exif/XMP) however all the available tags are not imported. The JPG is a DJI drone image with meta information as: altitude, YAW, GeoPosition, etc. Some ...
2
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1answer
132 views

How can I use AnatomyPlot3D with DICOM images?

I recently discovered beautiful things that can be achieved with AnatomyPlot3D. How can I apply this function to DICOM images from my local machine? Thanks in anticipation of your suggestions.
2
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1answer
67 views

Efficiently check if a File object is a valid Image

I have a directory of images that might not have downloaded, and need to delete the duds. This is too slow: Import /* ImageQ /@ fileNames In bash, I use the ...
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0answers
58 views

Why are these two images that are the same size not displaying as the same size?

The picture below is what my code is as well as the outputs (I covered the faces in MS paint for privacy). Both of the pictures are 160x200 px JPEGs, so I've really got no idea why they wouldn't print ...
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57 views

Image merge and white balance

I have three images of red, green, and blue channels of white particles. I wonder if anyone can help me to merge them and balance the white so that the particles in the merged image looks white. ...
5
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2answers
167 views

Extract individual white parts of binarized image

Suppose we have an image, like so: and I managed to create its MorphologicalGraph by using ...
6
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1answer
141 views

3D ImageCooccurrence

I'd like to compute ImageCooccurence for an Image3D object. Mathematica advertises that "Now essentially any operation ...
9
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1answer
485 views

Rendering PNG images to spline curves

I found something interesting on this page (Generic contour smoothing with shading) that could help me improve my images. Unfortunately, they can only be used with graphics generated by the software ...
2
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0answers
81 views

Mathematica 12.1 trial version, very slow to evaluate a property in multiple pictures

I am a new mathematica user. I am using the following code to measure the internal rectangle width in some images. When I run mathematica for $1$ image, it takes a short time. Also, it works and it ...
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0answers
55 views

$1)$ Combining codes. $2)$ Editing them. $3)$ Evaluating the outputs

I asked a question here. kglr answer was GOOD because that measurement is what I meant exactly. Due to my knowledge in mathematica (I am a $2$-days user), I have some problems (I believe that users ...
12
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2answers
370 views

Detecting two (almost) vertical lines, and find the gap between them in (pxl)

I have no knowledge in mathematica, python, and other great softwares. I saw the following picture in a website; Where a software detects objects (like bus) and tells about its height or width or ...
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0answers
20 views

Problems with ImageResize using Mathematica Online (different results than Mathematica desktop .nb)

I originally created a package (.m file) which handled figure formatting. This package was read into my desktop notebook file. In the code block below, I use ImageResize[image,width] to resize an ...
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1answer
39 views

insert or remove a photo from a notebook on demand

I would like a "button" which I could "click on" that would on first click insert a specific photo from a windows file and then, on second click, remove the photo. It could also be two buttons. Or ...
8
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1answer
199 views

Better performance for shortest path in an Image

I would like to find the shortest path in an image from one pixel to another. If the image is grayscale, the distance between two pixels could be Abs[p1 - p2], ...
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1answer
42 views

How to plot a greyscale image as a 3D plot for larger images?

I was following the post: Display grayscale image as 3d plot But the method failed for any image of substantial size (in my case when the data size is of order 3072x4096). Ram usage on my machine ...
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0answers
42 views

Construct UI for image

I am trying to build the User interface, whereby when binarize is clicked, it gives its slider and its respective MeanIntensity and StandardDeviation. The same for EdgeDetect and MorpologicalBinarize. ...
19
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4answers
406 views

Find best region to put text onto image

Given an image upon which you want to inset text, the question arises: What is the best sub-region to place text? For example, given a background image I want to find the rectangle in the image (...
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1answer
43 views

Rasterize resets the PlotRange?

I used in my calculations zome polynomials evaluated on a grid with Array command and characteristic functions of some polygons, which I evaluated using ...
2
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1answer
47 views

How to get center points of an images with different resolution

I have an images of particles and I want to get the center point coordinates for each particle. I can get the coordinates with other imaging tools, but since my calculations are in mathematica i want ...
2
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1answer
63 views

Resizing Imported GIF Image

I have a gif image that I am trying to import into the Mathematica Notebook, and I found the accepted answer of this question very useful: Is it possible to insert an animated image into Mathematica ...
2
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0answers
85 views

Mathematica 12.1 breaks exporting to postscript - workaround?

If you uncomment the ColorFunction in the code below, the resulting PS file is 200kb (compared to 32kb in 12.0) and is rejected by applications such as Scientific ...
3
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1answer
103 views

Rasterize issue with ListDensityPlot in 12.1

I have upgraded to 12.1 (on OSX Catalina 10.15.3) and am noticing some odd behaviour with Rasterize. If I use a high number of rasters when rasterising a ...
2
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1answer
70 views

How to know what underlying algorithm mathematica function is using? [closed]

For example Blur, the documentation doesn't seem to tell what is the algorithm it is using (https://reference.wolfram.com/language/ref/Blur.html). Is there any ...
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0answers
57 views

Use Mathematica to draw a tensor-like network

What are the Mathematica ways to draw this seemly delicate figure? Such that we can output a PDF file in the end.
2
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1answer
100 views

Complete contours (outline) from a image

I want to find the contours of (parts) image and sent the output to a laser cutter. For example, take this image: I use this code: ...
7
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1answer
138 views

How to detect rectangles with certain colors in an image?

I'd like to find the red bordered rectangles in this image: Here are my example images: ...
8
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0answers
169 views

Guide to capturing the complete image of given urls?

I'm trying to use WebImage[] to capture the complete image of a website (yes, it might be very tall). I seem to be having some issues with it: How to attempt to capture a complete image of the ...

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