Questions on the image processing capabilities implemented in Mathematica.

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4
votes
1answer
464 views

Image Processing: Detecting and counting small objects

I would like to analyze close-up images of human hair. My goal is to detect and count the number of hair strands and determine their width, but I am having a hard time binarizing the image. Seems like ...
1
vote
1answer
103 views

Identifying the color in Image

This has mad me Crazy for a while Can any one please Help me solving this this is the Image that I am working on . Basically this image is made up of 98 different color patches 7 patch on each level ...
5
votes
2answers
228 views

How to color separate a colored-in-pencil drawing?

I'd like to pick out just the "pencil" color in some drawings done by a young member of the household (he'd like to print out copies of these pictures and distribute them to his class mates on the ...
4
votes
1answer
276 views

How to get better quality EPS graphics

Yesterday, I was doing any Tables of 15 graphs similar to the next example, to save .eps and use in latex. In the generation of the graphs Mathematica spends many time. Is possible to reduce this ...
2
votes
1answer
172 views

Moment central of a binary image

I am implementing the Hu set of invariant moments detailed here Hu set of invariant moments. I implemented the moment Image like this: ...
2
votes
1answer
225 views

Segment parts of a picture

I remember that there was some thread of this sort, but I could not find it, so I hope it's ok to open a new thread. I want to segment pictures of the brain, i.e. I only want the area within the ...
0
votes
0answers
75 views

GraphicsGrid command

When we merge some colorful plots to a single image, with the command GraphicsGrid, the quality of output image will be lost, slightly. That is, for instance all ...
5
votes
2answers
1k views

Exporting pictures in their correct size when using Grid [duplicate]

I have a large number of pictures, and I need to place each three of them in a grid with a certain layout. For example, if I have the following pictures: ...
4
votes
2answers
297 views

How to create breathing wall effect?

I would like to recreate the effect of the one in this video: Breathing walls This is my first time manipulating images, and because of that, I don't even have a clue where to start. But I think ...
1
vote
1answer
225 views

Intersecting/Overlapping Image Elements Counts?

I have what I believe should be a relatively easy problem to solve that I have not been able to find an elegant solution for. I need to compare two binary 2D images and count if any of the elements ...
3
votes
1answer
338 views

Overlay two images

I have a series of endoscopic images taken by two cameras at the same time. A color image: and a fluorescent image indicating cancerous cells I now want to overlay the two images to indicate ...
8
votes
1answer
484 views

Binarize turning image completely black?

Running Binarize (or EdgeDetect) on a filled black and white image is resulting in an all black image. The image has the following color distribution (with most images points falling in either a ...
3
votes
1answer
276 views

Remove borders in a series of images

I have a series of mouse MRI images, here are two How can I automatically remove the metal cage around the mouse to make it look like this: The position of the cage is not always in exactly ...
1
vote
2answers
437 views

Projection of curve 3D (x,y,z) on the x-y plane

I have a following systeme : \begin{equation} \left\{ \begin{array}{rcr} (\beta+\frac{1}{2}\delta^{2})\nu_{1}(u)-\delta\nu_{2}(u)+\nu_{3}(u)& = &0\\ ...
0
votes
0answers
158 views

Change size of a saved plot or image (post-processing)

I have many plots (that take a long time to run) and each is saved to a variable name. For simplicity, say one was: ...
4
votes
2answers
232 views

How to count the number of n-gons and line intersections in an image of a complete graph?

I would like to count the number of line intersections and number of n-gons in a complete graph (which forms a regular polygon). The only way I've come up with that would allow me to do both in ...
4
votes
0answers
135 views

Multi-Camera streaming using Mathematica

I am attempting to capture dynamic streams from multiple usb webcams using only mathematica. Using ImageCapture["Device" -> $ImagingDevices[[x]], I've tried to ...
10
votes
2answers
1k views

How should I reproduce this colorful swirling gif?

Surfing on the web, I came upon this cool gif: Does any one know how to reproduce this in Mathematica? I have some ideas myself, so I will try to answer this question as well.
3
votes
1answer
129 views

Strange ImageFilter results

I am trying to perform some neighborhood analysis on an image, but ImageFilter seems to be interfering with the results outputted by the provided filtering function. Initialization Given the hue ...
2
votes
1answer
447 views

Data filtering using Butterworth filter

I want to filter data using Butterworth filter. I am currently using Matlab and I want to know how to do it in Mathematica. I have the following data: ...