Questions tagged [image]

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

76 questions with no upvoted or accepted answers
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15
votes
0answers
227 views

Is Mathematica 10 color managed?

With ColorProfileData Mathematica 10 can handle device-dependent color spaces. However images with embedded color profiles, e.g. ...
12
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0answers
186 views

Is it possible to search the web by image from Mathematica?

Is it possible to perform a web search based on an image input? There are several services that provide this: Google, Bing, TinEye, and maybe others. I am not sure which can be accessed ...
11
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0answers
322 views

Efficient image stacking

I have a list of lists of images that I would like to stack and create mean images for each list of images. Images are .jpg files 2592x1944 pixels large. Each list ...
10
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0answers
103 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):...
9
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0answers
111 views

Why does repeated export of JPG-Images consume all memory?

I was looking in the history of asked questions for similar questions, but none of the alike questions answered my problem sufficiently. So I ask nevertheless. My system memory is leaked by simple ...
7
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0answers
292 views

How to determine foci colocalization in a microscopy RGB image

I have a series of microscopy RGB images of the cell nucleus like this one The red and green dots are clusters of different proteins and I would like to determine when these dots colocalize. Through ...
7
votes
1answer
240 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 ...
6
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0answers
109 views

How to preview a list of images by sliding the mouse?

I'm trying to dynamically scrub over a list of images like in iphoto. Unfortunately, when the mouse moves from one side to the other, it's skipping frames which is confusing: When the mouse runs off ...
5
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0answers
301 views

How to import an HEIC image?

As of iOS 11, iPhones save images with a new compression format HEIC. Now all my photos are all in this format and I'd like to import them to Mathematica but this is not a supported image filetype. ...
5
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0answers
745 views

How can I create jpeg images of a given file size?

Cross-posted at Wolfram Community I would like to have a function makeJPG[megabytes_] that generates random jpg images of given file sizes with itf filesize (in megabytes) watermarked on the image ...
4
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0answers
163 views

Weird rasterization artifacts

When I try to rasterize circle with modified border thickness I get weird artifacts Image[Graphics[{Thickness[.2],Circle[]}]] Anyone knows any workaround how to ...
4
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0answers
202 views

Image processing- Identify regions in a segmented image to measure the dye intensities

I have split my image into the 3 channels each representing a different dye. I have segmented each image and I now want to 1) Identify each of the segmented regions and 2) Detect the level of dye ...
4
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0answers
348 views

How can I import from a usb webcam on the raspberry pi?

I'm trying to set up a raspberry pi as a webcam server and I need to import images into a Mathematica notebook on the raspberry pi. I tried using CurrentImage[] ...
4
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0answers
771 views

Masked Image Registration/Alignment/Correlation

I'm trying to register (align) two circular grayscale images using a boolean mask to prevent them simply being aligned on the fixed circular border. There are also small fixed circular regions in the ...
4
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0answers
215 views

Problem importing individual frames from QuickTime file

I am having difficulties with a code I am trying to run. Essentially I want to Read in a large .mov video file (60000+frames). ...
4
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0answers
172 views

Georeferenced bitmaps

The command Export["filename.jpg", graphic] will export the graphic object graphic to the file ...
4
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0answers
255 views

Single image import from stack via FTP connection

Background I would like to create a CDF document that is embedded on a webpage. The CDF will contain some image display ...
3
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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 ...
3
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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
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0answers
145 views

Re-projection of full disk satellite image

I am trying to re-project a full disk satellite image (see below) downloaded from JMA to Mercator projection. My understanding is that the image does not show the entire hemisphere (unless the ...
3
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0answers
48 views

Meaning/Format of RAW Image Data

I took photographs and I want to fit the (overall intensity or red intensity) of the photographs to a function of (x,y). I have some questions about how RAW data is structured. What is the difference ...
3
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0answers
249 views

How to set BitDepth and control dithering on exported GIF

Related: How to export a Graphics to PNG with BitDepth greater than 8? I can't find a way to set the BitDepth of an exported GIF. It doesn't need to have great colour data, but I don't want to reduce ...
3
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0answers
186 views

Confocal Microscopy

Is it possible to direcly import Nikon ND2 files (e.g Confocal microscope 2D or 3D stacks files)? Otherwise how can we import TIFFs of 3D stack and process it as a single "entity" so to speak? ...
3
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0answers
156 views

Identify and measure single bubble radius in series of images (TIFF)

I aim to make use of Mathematica's image processing capabilities to measure the radius of bubbles in consecutive images taken with a high-speed camera. After searching through this website I have ...
3
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0answers
135 views

Frame text is cropped while exporting as EPS

I have generated an eps file with using Export["filename.eps", figure, "eps"], but the text on the frame labels and tick numbers are cropped like this: Screenshot ...
3
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0answers
507 views

Import displays DICOM images as black rectangles (Mma v. 10)

My problem concerns Mathematica version 10.0.1.0 with OS X 10.9.4, OS X 10.9.5 and it does not occur in Mathematica version 9.0.1.0 (on the same computer and OS). About 90% of my DICOM images are ...
3
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0answers
590 views

Method Shrinkwrap Messes up editting Graphics

If you try resizing or moving the Inset in the following interface, the Graphics becomes incredibly jerky and borderline ...
2
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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 ...
2
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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
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0answers
40 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 ...
2
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0answers
63 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 ...
2
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0answers
56 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 ...
2
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0answers
45 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 ...
2
votes
0answers
87 views

How to achieve this fractal image transformation?

The app MirrorLab on Android has a very interesting Julia Effect, and I'd like to recreate this effect in Mathematica. Here are some examples of input images and their outputs: ...
2
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0answers
344 views

Export to PDF: DensityPlot & AllowRasterization->False

How to get production-quality vector graphic exported from Mathematica that looks like what is plotted in Mathematica. Example code: ...
2
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0answers
171 views

How to create 2D ImageHistogram?

Using ImageHistogram I can find the frequency of each color value in an image. Applying the same, I can have a histogram of its gradient values. I wish to combine these two on a log scale such that X -...
2
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0answers
70 views

Drag-and-drop image out of notebook

Drag-and-dropping images into notebooks works like a charm. But oftentimes I already have an image in a notebook and I want to use somewhere outside Mathematica. So we do this: right-clicking and ...
2
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0answers
299 views

How to image search on Twitter?

I'm looking for a function to download N images from Twitter with certain text in the tweet. Is there a better way to perform this search than this naive code: ...
2
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0answers
128 views

Exporting or save graph to pdf, when will the rasterization occur?

For simple graph Plot[Sin[x], {x, 0, 10}] No matter right click save as pdf or export as pdf, the result is vector image. But for ...
2
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0answers
240 views

How to get the SIFT features of an image?

According to the documentation, the function KeyPoints[] computes features only using SURF, but what about SIFT or FAST features?
2
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0answers
418 views

Understanding “IntensityData” coordinates

Update - Playing around a bit, is it true that we need to process the list of "IntensityData" values $r$ as follows: r = Partition[r,k]; r = Transpose@r; And ...
2
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0answers
335 views

Behavior of copy and paste with different image formats

Ok, let's say I create a 1x1 pixel image. i = Image[{{0}}, "Byte"]; Now I Export["image.png", i] the image and import it into ...
2
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0answers
133 views

“automated” image embedding app

Based on the following image attach procedure, can a Dynamic app be developed that: at start, only shows a small import button once clicked, opens a choose image ...
1
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0answers
21 views

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 ...
1
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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. ...
1
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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 ...
1
vote
0answers
104 views

Saving in 2D and 3D in vectorial (pdf or svg) format

Good Day everybody, I have difficulties to save both 2D and 3D plots in vectorial format. I can get acceptable results if I save manually: righ-click on image, "Save Graphic as..." or "Print as...". ...
1
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0answers
65 views

Grouping components to form a complete perimeter

This is a question relating to grouping of components picked out using ComponentMeasurements to make a complete perimeter of a shape. My goal is to measure the perimeter of each of these worm-like ...
1
vote
0answers
64 views

Fitting a 2D array with two parameters to another 2D array

I am trying to fit an array to an image generated from real data. Here is the sample image: This is a filtered magnetic dipole with some noise thrown in, and now I'm trying to fit my equation for a ...
1
vote
0answers
83 views

Revert image fusion using discrete wavelet transform

How can I extract a hidden image using discrete wavelet transform? I have used the function ImageFusion from this site to hide an image inside another one. ...