Questions tagged [image]
Tag for questions about bitmapped graphics, particularly those using the Image function.
574
questions
1
vote
0answers
29 views
+50
How to download user faves on Flickr?
The Flickr service API doesn’t seem to have the getfavorites() request implemented. Is there an good way to do this with WebExecute?
Code to get started with:
For ...
10
votes
0answers
104 views
Tracking cells as they move under a microscope
I have a video (tiff file) of cells under a microscope and I'd like to segment and track the location and sizes of them across time:
It has a hundred frames:
I've uploaded it here (now it is public):...
7
votes
1answer
736 views
web scraping images
I am trying to load player profile pictures from the following page:
https://www.transfermarkt.com/manchester-united/startseite/verein/985/saison_id/2006#
I use the following code:
...
1
vote
1answer
36 views
How reduce resolution of a graph during export?
Suppose I have a density plot which I want to export in EPS format. But when tried using command, Export["/home/1.eps", %263, "EPS"] , the exported image has very large size (~100MB). How can I ...
2
votes
2answers
77 views
5
votes
1answer
86 views
Is there a SubImageApply?
Given an image and a subimage (as a rectangle or pixel ranges):
img = ExampleData[{"TestImage", "Lena"}];
f = FindFaces[img]; HighlightImage[img, f]
How would ...
0
votes
2answers
41 views
how i can create 2d pixels image
Is it possible to create an image with a defined number of pixels? For example, create a circle through the equation x ^ 2 + y ^ 2 <= 200 ^ 2 in a 400x400 pp image and define different colors for ...
1
vote
1answer
40 views
Why ImportByteArray when generate image from bytes
I was trying to generate an image from a list of bytes so I only had to Import an Image once as I want to store a Base64Encoded ...
6
votes
4answers
144 views
How to count the overlapped disks in a picture?
I have several picture containing many small circles. I can manually count the circles in these pictures but it will be time-consuming and make me tired. How can I use mathematica to do this job?
I ...
3
votes
0answers
45 views
Uploading an image to Wolfram with “png” or “jpg” suffix [closed]
Using CloudExport one can get images of Wolfram objects into the cloud:
Problem: Those urls don't come with a *.png or <...
2
votes
1answer
61 views
Segmenting cells from a stained image of cells from microscope
I have an image which has stained cells and I have to segment all the cells.
But the problem is that the cell boundary is not very distinguished where there is staining done because of the stain.
...
5
votes
1answer
70 views
Find image dimensions without importing the full image?
Is there a way to find the ImageDimensions of an image file without Import'ing each one? The reason being that I have a ...
0
votes
0answers
29 views
How to run image manipulation function to an array of images?
I have multiple images imported into an array. My issue begins with using this array for an image manipulation function such as Inpaint. Inpaint only accepts a single image at a time.
Here's how I ...
1
vote
1answer
35 views
Comma separated images for .gif creation
I recently created a key frame animation using Mandelbulber 2.18-1. Each .png image was placed in a folder with known location. I then dragged all the images and dropped them into a Mathematica ...
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
6
votes
2answers
273 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 ...
17
votes
1answer
256 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:
...
3
votes
1answer
68 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 ...
1
vote
0answers
24 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.
...
2
votes
1answer
55 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 ...
2
votes
0answers
53 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 ...
1
vote
1answer
59 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.
-3
votes
1answer
101 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 ...
0
votes
0answers
109 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 ...
4
votes
3answers
265 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 ...
7
votes
1answer
112 views
Captcha text morphing effect
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" ...
1
vote
0answers
54 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 ...
2
votes
3answers
82 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 ...
2
votes
1answer
93 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:
...
1
vote
1answer
40 views
Programmatic access to Export options for filetype
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 doesn’t work:
...
0
votes
0answers
98 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 ...
2
votes
2answers
64 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, ...
8
votes
2answers
639 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 ...
2
votes
0answers
67 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 ...
2
votes
1answer
29 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 ...
22
votes
3answers
995 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 ...
3
votes
0answers
73 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 ...
0
votes
0answers
37 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 ...
0
votes
0answers
19 views
Import all images of a folder on mathematica [duplicate]
How can I import all the images of a folder on mathematica specifying the category of such images?
For example, if I have a folder with images representing the night how do I import them and specify ...
2
votes
1answer
109 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 ...
5
votes
4answers
493 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 ...
2
votes
0answers
30 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 ...
2
votes
1answer
101 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!
5
votes
1answer
88 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 ...
0
votes
1answer
90 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 ...
13
votes
3answers
390 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 ...
3
votes
0answers
103 views
Image Processing: Detecting certain edge features over varying contrasts
Images and description-
• The images are obtained from the frames of a video (>1000 images)
• As shown, there are contrast variations between the images
• The bubble shifts horizontally ...
3
votes
3answers
391 views
How to calculate surface of specific color?
I have black-and white picture like this
Can anyone tell me is it possible to calculate surface that black color occupies in this picture, so I know what's the percentage that black color has in ...
4
votes
1answer
107 views
3
votes
1answer
136 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 ...
