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University of Natural Resources and Life Sciences, Vienna

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Video/Image Processing


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Comments and Ratings by Frederik View all
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29 Jul 2014 Zernike Moments MATLAB Code for the Fast Calculation of Zernike Moments of order n and repetition m on NxN images. Author: Amir Tahmasbi

Hello Amir,
first of all, thanks for sharing your code.
secondly i would like to ask a question, in which i dont know if i make a mistake or you did in your code.

Product = p(x,y).*Rad.*exp(i*m*Theta)
to calculate the complex polynominal in all the formulars i found
(e.g: http://homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES/SHUTLER3/node11.html )
its written that j = sqrt(-1);
you wrote in your code -1*i instead, which is not the same. because sqrt(-1) is just the definition of the complex number to be i. so am i wrong or should it be:

Product = p(x,y).*Rad.*exp(i*m*Theta)

in your code, without the -1?

i hope its understandable what i want to say.

tanks again, frederik

20 Jul 2014 twitty Interface-class to access the Twitter REST API v1.1. Author: Vladimir Bondarenko

unfortunally i am facing the same problems as below:

Error using twitty (line 298)
The supplied credentials are not valid.

i made pretty sure, that i entered everything correctly.

Would appreciate to get some feedback, because i want to use this awesom function!

p.s. Using Matlab 2013a x64 with win 8

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