Questions on the image processing capabilities implemented in Mathematica.

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1
vote
1answer
56 views

How to select components selected via SelectComponents?

I have selected the components of a "reduced" (dilated, thinned) image, now I need to go back to the original image and find the coordinates of the components I have found. My code currently does ...
5
votes
1answer
105 views

How to create a MorphologicalGraph from MorphologicalBranchPoints

I want to select the morphological branch points of a thinned image to create a MorphologicalGraph like the one obtained by Pruning. I want to avoid the pruning step. How can I delete from the ...
0
votes
0answers
24 views

marking spontaneous in an Image and collect coordinates [duplicate]

How to mark spontaneous in an image and collect all the positions of marking. also then any example will be great aon land mark based registration Thanks
6
votes
1answer
238 views

Mathematica ignores image orientation

I have a bunch of mixed images, some portrait orientation, some landscape, which I want to be processed by Mathematica. When I Import them Mathematica handles them ...
14
votes
2answers
281 views

Extract bathymetry data from a map

Thanks everybody for edit and recommend. Here is a clearer version of my question. I have a map that shows bathymetry of a lake with legend showing depth relative to a range of color. The map ...
1
vote
0answers
149 views

Alternatives to Mathematica that are not computer algebra systems [closed]

Are there alternatives to Mathematica that are not computer algebra systems? I know there have been questions on this, but I am focusing on oprn source projects and instead of focusing on computer ...
30
votes
2answers
1k views

How do I remove grid from this photo?

I found this cat a month ago, and I'm not his owners' friend so the mosquito grid was the inevitable problem. I would like to post-process this photo to get rid of it, but I don't know exactly how ...
4
votes
1answer
259 views

Averaging over a circle from FFT to plot the amplitude vs wavelength

I am trying to calculate the amplitude of FFT vs wavelength for some experiments. I had put a question here previously on how to compute the FFT of an image. Thanks to everyone who provided the ...
-2
votes
1answer
258 views

How to get the coordinates of points within an image?

How can I get the coordinates of an image, and make Mathematica draw the image from the coordinates found? I am interested in just the outlines of the regions. Here is an example of the kinds of ...
7
votes
1answer
161 views

Optimal Binarize value for counting experiment

I am currently working on a physics experiment where I count particles. I have looked at and used a bit of code from the following sources: Cell counting from an image file and Count Elements in Image ...
9
votes
5answers
496 views

Remove static objects from an image sequence

Is it possible to remove static objects/pixels from a sequence of images? Lets say I have a black square in the middle of my white picture (white background) and a black circle is orbiting around it. ...
7
votes
0answers
289 views

Visualization of traces of moving objects

An example movie which is made with the listed mathematica code below shows traces of moving objects: https://youtu.be/8jN2uuSHCEg (Melting ...) http://youtu.be/5ET62846C-I (Crystallisation ...) ...
3
votes
2answers
148 views

Image smoothing with own smoothing function

I have thousands images similar to the following one: This image was produced with the following color table: ...
2
votes
1answer
160 views

Better way to binarize an image

I have an image: pic = Import[ "http://note.youdao.com/yws/public/resource/\ 2c5a562224240edcf1631fcd39810f56/55FA538207424C0A98AB548724994AE1"] that I ...
14
votes
2answers
595 views

Trainable WEKA segmentation of images

Is there a Mathematica equivalent of Trainable WEKA Segmentation as implemented in Fiji, the image processing software? A Google search did not return any relevant links. I attach the original image ...
7
votes
1answer
643 views

Calculation of 2D FFT for an image

I am trying to obtain 2D FFT of an image. From the 2D FFT, I wish to calculate the amplitude of the FFT averaged over a circle vs the distance in pixels by varying the radius of the pixels which is ...
6
votes
4answers
900 views

Finding number of pixels with certain RGB color in an image

I have the following image: To determine the number of black pixels (nBlackPixels) I use: ...
2
votes
0answers
104 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 ...
12
votes
2answers
794 views

How to fill the space outside of an image after rotating it

I want to rotate this image by -50 degrees, and then fill up the black space around the rotated image with a bluish color. I can't find any documentation/answers that suggest how to do it. (Sorry ...
11
votes
3answers
417 views

Best method to find variation in width along the image of a slit?

EDIT: Solutions by @Alexey Popkov and @Vitaliy Kaurov are very intuitive and both can be used to find a solution for the task. I have a slit of 15-18 microns by 1 mm projected with magnified 4X onto ...
5
votes
2answers
162 views

Speed up image coloring with ReplaceImageValue

I have about 200000 rgb-images of such format (2160*577 pixels): I want to colorize in each image some parts in white color: ...