Mailman 3 December 2015 - scikit-image

Re: skimage and opencv
by Emmanuelle Gouillart Sept. 22, 2016

Sept. 22, 2016

Hi FranÃ¯Â¿Â½ois, that's an excellent question, and not a troll :-). Opencv is a very powerful library, but it focuses primarily on computer vision (feature detection and extraction, classification, ...), as opposed to image processing in general (with other tasks such as denoising, segmentation, ...). The other big difference is that skimage builds on numpy ndarrays, and uses the full power of the numpy API (including of course the basic facilities for processing arrays as images that come with numpy), as well as some of scipy functions (you could have added scipy.ndimage to your list -- a few functions in skimage are wrappers around scipy.ndimage, that exist for the sake of completeneness). One important consequence is that algorithms working for 3-d or even n-d images can be easily implemented in 3-d/n-d in skimage, whereas opencv is restricted to 2-D images (as far as I know). Thanks to the use of numpy arrays, the API of skimage is also quite pleasant for a numpy user, more than the API of opencv. A related difference is that skimage is written in python and cython, whereas opencv is a C++ library. The two libraries attract a different crowd of developers, and a Python/Cython toolkit based on numpy arrays is easier to develop and maintain inside the Scientific Python ecosystem. I'm sure that other devs/users will have things to add to this discussion! Cheers, Emmanuelle On Thu, Dec 27, 2012 at 02:06:08PM -0800, FranÃ¯Â¿Â½ois wrote: > Hi users and devs, > It came to my knowledge that another python library (based on C++ and C > codes) for image processing exists too : opencv > I understand that numpy intregrates some basic features and we need some > advanced features but I have the feeling that skimages is redoundant with > opencv in some ways. > What's the position of skimage about that? (Don't read this question as a > troll but like a real question). > I mean that similar features exist in both. Would not be possible to > reuse/integrate opencv or merge? what's the reason for keeping them apart? > My observation is there is 4 libraries to manipulate images: > * PIL > * numpy > * skimages > * opencv > That's a lot. > Cheers,

3 2

Boundary/outline of objects in an Image
by ashz＠walla.co.il Feb. 15, 2016

Feb. 15, 2016

Hi, I try to focus on scikit-image instead of other non-open source software. Therefore, is there an example how to boundary/outline of objects in an Image? Something like this tutorial: http://www.mathworks.com/help/images/boundary-tracing-in-images.html Thanks

2 1

Re: Release sprint, Thursday/Friday 10/11 Dec
by Alexandre Fioravante de Siqueira Dec. 10, 2015

Dec. 10, 2015

Hi Stéfan, I am looking on the "white space" issue (https://github.com/scikit-image/scikit-image/issues/1773), rewriting some code to achieve PEP 8 style and wondering on that spaces, but I'm really frightened on pulling my code. Is there a way to check the structure of the example pages before pulling it? Thank you very much! Alex Em quinta-feira, 10 de dezembro de 2015 14:05:18 UTC-2, stefanv escreveu: > > Hi, Alexandre! > > Thank you very much for offering to help. For today, please head over to > our GitHub repository and have a look at outstanding issues and pull > requests, especially the ones tagged with the "0.12" milestone. > > Thanks, > Stéfan > On Dec 10, 2015 6:17 AM, "Alexandre Fioravante de Siqueira" < > sique...(a)gmail.com <javascript:>> wrote: > >> Hi Stéfan and everyone! >> I would really like to help, but my Python experience is not so great. >> What could I do? >> Thank you very much for all your efforts on bringing that amazing >> software to all of us! >> >> Alex >> >> Em segunda-feira, 7 de dezembro de 2015 16:06:12 UTC-2, stefanv escreveu: >>> >>> Hi, everyone >>> >>> It is time to do some final preparations for the end-of-year, holiday >>> edition of scikit-image! This coming Thursday and Friday, please join me in >>> a sprint to round up some final nagging issues before we tag 0.12. >>> >>> Looking forward to seeing you on Gitter! >>> >>> Stéfan >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "scikit-image" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to scikit-image...(a)googlegroups.com <javascript:>. >> To post to this group, send email to scikit...(a)googlegroups.com >> <javascript:>. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/scikit-image/11bd4288-6d0d-4eb7-865a-f626… >> <https://groups.google.com/d/msgid/scikit-image/11bd4288-6d0d-4eb7-865a-f626…> >> . >> For more options, visit https://groups.google.com/d/optout. >> >

2 2

Re: Release sprint, Thursday/Friday 10/11 Dec
by Alexandre Fioravante de Siqueira Dec. 10, 2015

Dec. 10, 2015

Hi Stéfan and everyone! I would really like to help, but my Python experience is not so great. What could I do? Thank you very much for all your efforts on bringing that amazing software to all of us! Alex Em segunda-feira, 7 de dezembro de 2015 16:06:12 UTC-2, stefanv escreveu: > > Hi, everyone > > It is time to do some final preparations for the end-of-year, holiday > edition of scikit-image! This coming Thursday and Friday, please join me in > a sprint to round up some final nagging issues before we tag 0.12. > > Looking forward to seeing you on Gitter! > > Stéfan >

2 1

Re: Face detection
by Amit Bhatkal Dec. 8, 2015

Dec. 8, 2015

Thank you Stefan. I will have a look at the issues and contribute wherever I can. Can you please point me to the page containing the issues. Regards, Amit On Wed, Dec 9, 2015 at 12:34 AM, Stéfan van der Walt <stefanv(a)berkeley.edu> wrote: > Hi Amit > > On Tue, Dec 8, 2015 at 3:25 AM, Amit Bhatkal <amitbhatkal12(a)gmail.com> > wrote: > > I am interested in contributing to the Face Detection project. It would > be > > helpful if I can get some tasks/ references / coding guidelines so that I > > can get started. > > The face detection project was completed as a Google Summer of Code > project, but there are many other ways to contribute! For one, you > can help us to prepare for the upcoming 0.12 release by trying to > close any issues still open. > > Thanks for helping out! > > Best regards > Stéfan > > -- > You received this message because you are subscribed to the Google Groups > "scikit-image" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to scikit-image+unsubscribe(a)googlegroups.com. > To post to this group, send an email to scikit-image(a)googlegroups.com. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/scikit-image/CABDkGQmMR%2Bj5iF-RcuvV1FowX… > . > For more options, visit https://groups.google.com/d/optout. >

1 0

Re: Face detection
by Amit Bhatkal Dec. 8, 2015

Dec. 8, 2015

> > Hi Stefan , > I have been using python for developing simple image processing applications . I have used skimage as well. I would love to contribute to a project which involves image processing and machine learning but most importantly I want to gain an experience of working with open-source communities. I am interested in contributing to the Face Detection project. It would be helpful if I can get some tasks/ references / coding guidelines so that I can get started. Thank you Regards, Amit

2 1

Re: Release sprint, Thursday/Friday 10/11 Dec
by Emmanuelle Gouillart Dec. 7, 2015

Dec. 7, 2015

Hi StÃ©fan, great idea! I'll join in the evenings from Paris, so that the timing won't be too bad for chatting with California! I had a quick look at open issues and pull requests tagged for 0.12 milestone, I don't know if all important issues have been tagged though. I can see that Travis is still failing on most pull requests, any hope to fix this before the release? Cheers, Emma On Mon, Dec 07, 2015 at 10:06:09AM -0800, StÃ©fan van der Walt wrote: > Hi, everyone > It is time to do some final preparations for the end-of-year, holiday edition > of scikit-image! This coming Thursday and Friday, please join me in a sprint to > round up some final nagging issues before we tag 0.12. > Looking forward to seeing you on Gitter! > StÃ©fan

2 1

Re: Release sprint, Thursday/Friday 10/11 Dec
by Johannes Schönberger Dec. 7, 2015

Dec. 7, 2015

Hi, Sounds good, but I won't be able to join you this time. About to move back to Europe this weekend. Have fun! On Dec 7, 2015, at 13:06, Stéfan van der Walt <stefanv(a)berkeley.edu> wrote: Hi, everyone It is time to do some final preparations for the end-of-year, holiday edition of scikit-image! This coming Thursday and Friday, please join me in a sprint to round up some final nagging issues before we tag 0.12. Looking forward to seeing you on Gitter! Stéfan -- You received this message because you are subscribed to the Google Groups "scikit-image" group. To unsubscribe from this group and stop receiving emails from it, send an email to scikit-image+unsubscribe(a)googlegroups.com. To post to this group, send email to scikit-image(a)googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/scikit-image/CABDkGQ%3DD%2BWMP1MKyjWUTcCR… <https://groups.google.com/d/msgid/scikit-image/CABDkGQ%3DD%2BWMP1MKyjWUTcCR…> . For more options, visit https://groups.google.com/d/optout.

2 1

Release sprint, Thursday/Friday 10/11 Dec
by Stéfan van der Walt Dec. 7, 2015

Dec. 7, 2015

Hi, everyone It is time to do some final preparations for the end-of-year, holiday edition of scikit-image! This coming Thursday and Friday, please join me in a sprint to round up some final nagging issues before we tag 0.12. Looking forward to seeing you on Gitter! Stéfan

1 0

Re: Strange Travis error on #1794
by Jonathan Helmus Dec. 5, 2015

Dec. 5, 2015

On 12/01/2015 03:26 PM, Stéfan van der Walt wrote: > It looks like the docs build is breaking unrelated to #1794: > > https://travis-ci.org/scikit-image/scikit-image/jobs/94241837 > > Any ideas? > Sphinx 1.3.2 was released a few days back, could something in this release have broken the doc build? - Jonathan Helmus

3 2