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2:58 AM
I think I was a little harsh in this answer. Thoughts?
 
 
6 hours later…
F'x
8:35 AM
@rcollyer sounds fine to me
 
 
2 hours later…
acl
10:13 AM
@rcollyer it's fine
 
 
1 hour later…
11:19 AM
@Szabolcs (hope this gets to you) or @rcollyer: Do you know of a MMA implementation of the "total variation regularization" links you have in this question: stackoverflow.com/questions/6502440/… for discrete data?
 
11:30 AM
@tkott You know, I never looked closely at that.
 
12:02 PM
@tkott I'm sorry, it was only Googling. While I find it interesting, at that time I simply didn't have time to study it.
 
12:57 PM
@rcollyer, @Szabolcs thanks! I just found a matlab implementation, so I'll just translate that, thought I already have a gaussian filter implementation that is working reasonably well :)
 
 
2 hours later…
2:43 PM
@Szabolcs and @Fx thanks. Sometimes I get tired of answering that question, and it surfaces every couple of weeks it seems. But, I'm relieved others don't think I was being to harsh.
 
 
3 hours later…
5:20 PM
10
Q: Collaboration on Mathematica Work

mmorrisI have recently put together a package in response to a question I posted on Importing HDF5 with compound data and I want to make it available for use and collaboration. I have two questions (there maybe others I should be asking so feel free to point them out): 1) Where to post the package? O...

 
 
4 hours later…
9:00 PM
Average number of questions/day now dropped slightly below 10. Time for some publicity action again I'd say. Fire up your blogs, twitter, FB, LinkedIn, newsgroup etc.!
@tkott if you're looking for Gaussian filters and scale space this site of a former colleague of mine and MMA enthusiast Bart ter Haar-Romenij could be useful. Lots of courseware, books and mma code sample
S
 
@SjoerdCdeVries Thanks, that actually looks like a great resource for MMA + Image analysis. I actually am applying it to 2D data (i.e., {{x1,y1}..}) that I need to smoothly differentiate. I implemented the method from the link above, and it works, but slowly. On monday I'll take a stab at improving it and then probably post as a question :)
 
9:17 PM
@rcollyer It was acl, not me. But I too think it's fine.
 
9:31 PM
@tkott Did you see the answer I gave to the question you linked to? It's about smooth differentiation of 1D data but it should be straightforward to adapt to your needs.
 
Yup, I tried that first, but it wasn't quite smooth enough to be useful. I had some time to implement that total variation regularization, and play around with SparseArrays in MMA for the first time, so I just translated it from a MATLAB file.
 
10:40 PM
@Szabolcs :) did not notice.
Hi @SjoerdCdeVries just stopping in to see if anything is going on. Apparently not. Talk to you later.
 
acl
@rcollyer Were you referring to my answer ("It's fine") when you pinged Szabolcs?
 

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