Questions tagged [image]
Tag for questions about bitmapped graphics, particularly those using the Image function.
630
questions
0
votes
0answers
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 ...
1
vote
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 ...
7
votes
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
votes
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
votes
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 ...
1
vote
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
votes
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 ...
0
votes
2answers
52 views
Composition of images with different dimensions
I created a code to make an image composition ...
...
2
votes
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
votes
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
votes
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
votes
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 ...
...
1
vote
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 ...
7
votes
0answers
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 ...
3
votes
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
votes
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
votes
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
votes
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
votes
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
votes
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
votes
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
votes
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
votes
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.
<...
0
votes
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
votes
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
votes
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 ...
0
votes
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 ...
0
votes
0answers
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
votes
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
votes
1answer
141 views
3D ImageCooccurrence
I'd like to compute ImageCooccurence for an Image3D object. Mathematica advertises that "Now essentially any operation ...
9
votes
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
votes
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 ...
0
votes
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
votes
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 ...
2
votes
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 ...
0
votes
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
votes
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], ...
0
votes
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 ...
0
votes
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
votes
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 (...
0
votes
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
votes
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
votes
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
votes
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
votes
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
votes
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 ...
0
votes
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
votes
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
votes
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
votes
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 ...
