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Gordon Cooper


University of the Witwatersrand

23 total contributions since 2004

http://www.wits.ac.za/academic/science/geosciences/research/geophysics/gordoncooper/6512/home.html

Professional Interests: Geophysics, potential fields, mineral exploration

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Answered
Hello; I'm using the symbolic maths toolbox, specifically the fourier function. How do I access the positive and negative frequency components of the result separately ?
Hello, yes, the fourier function gives me the symbolic expression for the FT of my symbolic function. But how do I access the ...

8 days ago | 0

Question


Hello; I'm using the symbolic maths toolbox, specifically the fourier function. How do I access the positive and negative frequency components of the result separately ?
Hello; I'm using the symbolic maths toolbox, specifically the fourier function. How do I access the positive and negative freque...

8 days ago | 3 Answers | 0

3

answers

Submitted


Processed Imagery of the Great Red Spot, Jupiter
3D fractional order sunshaded image of the great red spot, Jupiter.

8 months ago | 1 downloads |

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3D Fractional Order Sunshaded Image
Sunshaded image overlain on original data in 3D.

8 months ago | 4 downloads |

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Responded


Re: Running correlation coefficient
Hello Stefanie, http://www.mathworks.com/matlabcentral/fileexchange/18409-comparing-time-series-using-semblance-analysis Gordo...

2 years ago | 2722 views

Responded


Re: percentage of signal similarity
Hello, http://www.mathworks.com/matlabcentral/fileexchange/18409-comparing-time-series-using-semblance-analysis Gordon Cooper

3 years ago | 2000 views

Responded


Re: cross correlograms
You might find this File Exchange post useful; http://www.mathworks.com/matlabcentral/fileexchange/18409-comparing-time-series-...

3 years ago | 5641 views

Responded


Re: Correlation changes over time programming question
Hi, http://www.mathworks.com/matlabcentral/fileexchange/18409-comparing-time-series-using-semblance-analysis Gordon Cooper

6 years ago | 2400 views

Responded


Re: When to analyze correlation or covariance for prediction?
If the correlation varies as a function of time then you might find this code useful; http://www.mathworks.com/matlabcentral/fi...

7 years ago | 9290 views

Responded


Re: need help in visual music
as far as I can tell, most of the Windows Media Player visualisations are just plots of the windowed Fourier transform of the mu...

7 years ago | 1887 views

Submitted


Anti-aliased GLCM textural analysis
Computes the anitaliased inverse difference moments GLCM textural analysis measure.

7 years ago | 6 downloads |

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Responded


Re: Viewing 3D SEG-Y reflection seismic data.
Hi, coopergNOSPAM@geosciences.wits.ac.za Gordon Cooper

7 years ago | 4591 views

Responded


Re: coherence over time
you delay that 'coherence' there the problem with windowing the data is that the results will be strongly dependant on the wind...

8 years ago | 3248 views

Responded


Re: coherence over time
Jamie Johnston" <johnston@kin.ucalgary.ca> wrote in message <fvvdk9$rso$1@fred.mathworks.com>... looked You might find this co...

8 years ago | 3248 views

Responded


Re: pattern recognition
muzaffar " <muzaffarbashir@yahoo.com> wrote in message You might find this program useful; http://www.mathworks.com/matlabcent...

8 years ago | 3850 views

Responded


Re: Image Processing CT MRI related
Rajesh fdgsdf" <rv_acharya@yahoo.com> wrote in message using specific You might find this link on the Mathworks site useful;...

8 years ago | 1371 views

Responded


Re: measuring intensity values using wavelets
Yannick " <realflesh@hotmail.com> wrote in message sort Compute the CWT using a complex wavelet (eg cmor1-1), then use images...

9 years ago | 1007 views

Responded


Re: How to make a figure window partially transparent?
Hi, which are plotted time series transparent, so axis is the different.) -you might find this program helpful for comparing t...

9 years ago | 1258 views

Submitted


Comparing Time Series using Semblance Analysis
This program shows the correlation between two datasets as a function of both time and wavelength.

9 years ago | 25 downloads |

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Responded


Re: detecting clusters, blobs, islands in images
in message <f9h7ii$cln$1@fred.mathworks.com>... I solved this problem by choosing a threshold between the islands and the rest...

9 years ago | 5578 views

Submitted


imageshiny
Display an image with a shiny look without a light source.

11 years ago | 3 downloads |

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Submitted


Surfplot
Overlays highpass filtered data ontop of data itself, in 3D.

12 years ago | 1 downloads |

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Submitted


circlesun
Enhancement of circular features in raster images.

12 years ago | 3 downloads |

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