Questions on the image processing capabilities implemented in Mathematica.

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10
votes
0answers
238 views

Proving (self) similarity with Mathematica - Reccurrence Plots, Similarity Plots etc

I posted this question in math.se but given the sheer tumultuous number of questions that keep appearing on math.se and also given that I am trying to accomplish this in Mathematica, I thought I'd ...
7
votes
0answers
257 views

Cluster a signal into areas of equal intensity

Introduction I have a greyscale photograph that I want to partition into areas of equal intensity. This means, that the integral over each partition should be (roughly) equal. There is no unique ...
4
votes
0answers
350 views

looking for a generalised Hough Transform function or a least a function to locate circles

I am looking for a generalised Hough Transform function or a least a function to locate circles (position of center and radius) in a image. There is the standard Hough line search function ...
3
votes
0answers
56 views

Challenge: Speeding up MaxDetect for application in 3D blob detection

In image segmentation it is a common problem that objects appear clustered and are therefore undistinguishable from each other when using simple algorithms. Based on this post I obtained efficient ...
3
votes
0answers
203 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 ...
2
votes
0answers
102 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 ...
2
votes
0answers
347 views

computation of gradient vector field in 3D using GradientOrientationFilter

I want to compute a 3D gradient vector field of an Image3D object using the built-in GradientOrientationFilter function in Mathematica. From the documentation I ...
2
votes
0answers
204 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 ...
1
vote
0answers
22 views

ImageCapture on Windows 8.1

I have an Asus SmartTab tablet with Mathematica 9 on it. When I run ImageCapture, nothing shows up in the image window. Originally running this completely crashed ...
1
vote
0answers
200 views

How to get the latitude and longitude from a picture taken by a telescope?

I don't know if there is any possibility to recover the latitude and longitude from a picture which was taken by a telescope? For example, the following picture were taken by a telescope (I don't know ...
0
votes
0answers
51 views

How can I add drop shadows to the text of non-input/output cells?

Inspired by simon woods's wonderful shadow function, I want to add drop shadows to all the text of non-input/output cells in a notebook, something like this: By using simon woods's shadow function, ...
0
votes
0answers
66 views

Correctly set up FindMinimum

I am trying to setup the following minimization to align two astronomical images. ...
0
votes
0answers
210 views

Metric Parameters such as Pratt Figure of Merit (Pratt-FOM) for Edge Detection

I have developed a new algorithm in Mathematica v9.0 for the Edge Detection and want to compare it with the existing Roberts, Sobel, Prewitt etc, operators in the presence of Noise. I have evaluated ...
-2
votes
0answers
47 views

Converting octave matrix function in Mathematica

I'm trying to solve a problem: I need to translate an octave code in mathematica but I'm struggling with those lines. ...