Questions tagged [image]
Tag for questions about bitmapped graphics, particularly those using the Image function.
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Is Mathematica 10 color managed?
With ColorProfileData Mathematica 10 can handle device-dependent color spaces. However images with embedded color profiles, e.g. ...
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FunctionCompile examples for Computer Vision
I'm looking for some good examples of FunctionCompile applied to image processing code since there doesn't seem to be anything on this in the documentation. So here's a first attempt at a hello world ...
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248
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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 ...
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11
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365
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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 ...
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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 ...
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Background removal with hair
I'd like RemoveBackgound to work on images where the foreground boundary is nontrivial e.g. with hair:
...
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7
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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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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 ...
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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 ...
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5
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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 ...
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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 ...
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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 ...
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4
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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 ...
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4
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393
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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[] ...
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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).
...
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209
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Georeferenced bitmaps
The command Export["filename.jpg", graphic] will export the graphic object graphic to the file ...
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278
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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 ...
- 3,298
3
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Applying Super-Resolution to differently sized images
I would like to make some images larger and noticed that there is a page in the documentation for doing super-resolution using a network structure. It's called "A Model for Super-Resolution."...
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Export Vectorized Images
I read the answered question here which was for 7 years ago. I want to use DensityPlot3D function to draw a figure and save it as eps, pdf, or SVG as a vectorized ...
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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 ...
- 1,437
3
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answers
40
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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 ...
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3
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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 ...
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3
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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:
...
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3
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202
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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 ...
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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 ...
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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 ...
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244
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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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167
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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 ...
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3
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163
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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 ...
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3
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738
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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 ...
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3
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888
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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 ...
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2
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Save Selection As command gives no options--only pdf format savable
I want to insert a Mathematica plot (ListPlot3D) into my question CopulaQuestion, but I no longer seem to be given the option of what format to use. Only a pdf seems possible, which I can't then ...
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family photo album,how to optimize its realization?
I am Beezy, the eldest daughter of the couple.
I have a lot of photos on paper and I want to make a photo album for my parents, but the task is titanic.
First I use a scanner, to scan the photos that ...
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2
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How to make eplilog text visible while exporting plot as pdf?
I am having this problem that if I add some epilog text in a plot by rotating it, then while I export the plot as pdf, the text becomes invisible. It works fine if I export it as jpeg or png.
What ...
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2
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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
...
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2
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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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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 ...
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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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1
answer
80
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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 ...
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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 ...
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173
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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 ...
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2
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66
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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
...
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2
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62
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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 ...
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260
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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 -...
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107
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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 ...
- 30.6k
2
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319
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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:
...
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297
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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 ...
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2
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278
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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?
- 30.6k
2
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427
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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 ...
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366
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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 ...
- 7,511