December 2016 - Pharo-users

Re: [Pharo-users] webcam images for image processing

by dyfroedd

Thank you for getting back so quickly. I appreciate the pointers you gave me; I'll check them out. I have edited my post to correct my spelling of Smalltalk - sorry :) -- View this message in context: http://forum.world.st/webcam-images-for-image-processing-tp4928374p4928393.… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Dec. 30, 2016

Re: [Pharo-users] webcam images for image processing

by dyfroedd

Thank you for getting back so quickly. I appreciate the pointers you gave me; I'll check them out. I have edited my post to correct my spelling of Smalltalk - sorry :) -- View this message in context: http://forum.world.st/webcam-images-for-image-processing-tp4928374p4928392.… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Dec. 30, 2016

Re: [Pharo-users] webcam images for image processing

by Dimitris Chloupis

On Fri, Dec 30, 2016 at 10:47 AM Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > - First welcome and do not hesitate to ask any question. > > I know that we have a binding for openCV (dimitry I do not remember) > demoes it at ESUG 2014 at Brescia (check the videos on youtube). > > - Second you should use uFFI to talk to the drivers. There is a tutorial > in PharoInProgress (I have to run) > > > > Now this is somehow related... check this fun small project made to access > public webcam > > Stef > > PS: it is Smalltalk :) > > > the documentation that Stef is referring to is here https://ci.inria.fr/pharo-contribution/view/Books/job/PharoBookWorkInProgre…

Dec. 30, 2016

Re: [Pharo-users] webcam images for image processing

by Dimitris Chloupis

Welcome to our Pharo island :) *gives a flower necklace* My central ideology about Pharo is that it is a waste of potential to remake libraries that exist in other languages unless we want to bring something new or something more specific. Thus its a very good idea to use C/C++ libraries and libraries made for other programming languages from inside Pharo. I for instance use Python libraries from inside Pharo. What I have found is that pharo is excellent as a central nervous system , Brain + nerves , for an application. Because not only the language is simple, but mostly because of live coding and ability of the IDE to deal with complex code and isolate bugs. Live coding is pretty much the bread and butter for us graphics programmers (I use Pharo together with Unreal and Blender) because it allows us to test things on the fly without having to worry about compile times or syntax errors or crashes or whatever can interrupt us from "being in the zone". Pharo is without exaggeration the best live coding language out there by very far from others except Lisp which is the basis of Smalltalk and where we have borrowed many ideas. So, my preference in this case would have been to use OpenCL from Pharo via the UFFI. This way you have both the speed you need for heavy graphics processing and all the cool stuff that Pharo has. Whats the catch ? Well you have to know C/C++ obviously and you have to know UFFI. Once you understand UFFI you are practical unstopable and there will be NOTHING you wont be able to do with Pharo. I will upload a video tutorial for UFFI , I was looking for an interesting example and I think the webcam case you presented via OpenCL is perfect. It will be a long one, probably an hour or so , obviously because a lot have to be presented and explained. I cannot say exactly when I will upload it because lately life has been hectic (family health issues -- nothing serious but several days in the hospital) and I have no clue how OpenCL works (though I never shy from an interesting challenge) but I hope to have the free time and motivation to do it during this weekend. On Fri, Dec 30, 2016 at 2:07 AM dyfroedd <dyfroedd(a)gmail.com> wrote: > Hi > > I'm fairly new to SmallTalk and so impressed with the programming style as > it helps me visually understand how the classes are interrelated etc. > > I would love to use SmallTalk (Squeak or Pharo) for some image processing. > I > can create my own processing methods and kernels but have had problems > accessing the images from a webcam. I have stumbled at this most basic > step. Can anyone help me (I am new to SmallTalk) to access a webcam on a > mac please? > > I have read various intros into SmallTalk (Squeak and Pharo) but doing > something really useful like basic image processing is still a hurdle for > me > in SmallTalk. > > Alternatively I can use C++ (and OpenCV) to access and process images and > use smalltalk to build a GUI but that would defeat the purpose of me trying > to use SmallTalk to begin with. > > I appreciate your help. > > > > -- > View this message in context: > http://forum.world.st/webcam-images-for-image-processing-tp4928374.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Dec. 30, 2016

Re: [Pharo-users] webcam images for image processing

by Stephane Ducasse

- First welcome and do not hesitate to ask any question. I know that we have a binding for openCV (dimitry I do not remember) demoes it at ESUG 2014 at Brescia (check the videos on youtube). - Second you should use uFFI to talk to the drivers. There is a tutorial in PharoInProgress (I have to run) Now this is somehow related... check this fun small project made to access public webcam Stef PS: it is Smalltalk :) On Fri, Dec 30, 2016 at 12:49 AM, dyfroedd <dyfroedd(a)gmail.com> wrote: > Hi > > I'm fairly new to SmallTalk and so impressed with the programming style as > it helps me visually understand how the classes are interrelated etc. > > I would love to use SmallTalk (Squeak or Pharo) for some image processing. > I > can create my own processing methods and kernels but have had problems > accessing the images from a webcam. I have stumbled at this most basic > step. Can anyone help me (I am new to SmallTalk) to access a webcam on a > mac please? > > I have read various intros into SmallTalk (Squeak and Pharo) but doing > something really useful like basic image processing is still a hurdle for > me > in SmallTalk. > > Alternatively I can use C++ (and OpenCV) to access and process images and > use smalltalk to build a GUI but that would defeat the purpose of me trying > to use SmallTalk to begin with. > > I appreciate your help. > > > > -- > View this message in context: http://forum.world.st/webcam- > images-for-image-processing-tp4928374.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Dec. 30, 2016

Re: [Pharo-users] Mutter system news

by Stephane Ducasse

tx ! On Fri, Dec 30, 2016 at 3:06 AM, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > Stephane Ducasse-3 wrote > > I suggest that we remove from the list this bot. > > Banned from the Nabble mirror and all posts deleted. > > > > ----- > Cheers, > Sean > -- > View this message in context: http://forum.world.st/Mutter- > system-news-tp4928293p4928383.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Dec. 30, 2016

Re: [Pharo-users] Mutter system news

by Sean P. DeNigris

Stephane Ducasse-3 wrote > I suggest that we remove from the list this bot. Banned from the Nabble mirror and all posts deleted. ----- Cheers, Sean -- View this message in context: http://forum.world.st/Mutter-system-news-tp4928293p4928383.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Dec. 30, 2016

webcam images for image processing

by dyfroedd

Hi I'm fairly new to SmallTalk and so impressed with the programming style as it helps me visually understand how the classes are interrelated etc. I would love to use SmallTalk (Squeak or Pharo) for some image processing. I can create my own processing methods and kernels but have had problems accessing the images from a webcam. I have stumbled at this most basic step. Can anyone help me (I am new to SmallTalk) to access a webcam on a mac please? I have read various intros into SmallTalk (Squeak and Pharo) but doing something really useful like basic image processing is still a hurdle for me in SmallTalk. Alternatively I can use C++ (and OpenCV) to access and process images and use smalltalk to build a GUI but that would defeat the purpose of me trying to use SmallTalk to begin with. I appreciate your help. -- View this message in context: http://forum.world.st/webcam-images-for-image-processing-tp4928374.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Dec. 29, 2016

Re: [Pharo-users] Mutter system news

by Stephane Ducasse

I suggest that we remove from the list this bot. On Wed, Dec 28, 2016 at 8:30 PM, Charlie Robbats <charlie.robbats(a)gmail.com> wrote: > 22 - priority queue vatting calls and send stacks: meta over emojis over > cookies over cookie monsters over garbage gravity grave > > > > On 12/28/2016 2:22 PM, Charlie Robbats wrote: > >> 19 - I am thinking about merging RS FEC with blockEn/Decoding with a >> 7-bit msgChunks into 8-bit blocks, or QoS determined. That along with >> non-secret 3-way finite field key agreement ratcheting and contract >> established scoping, would mean each transaction might be separately >> islolated from every other and the contract exchange includes trusted >> observation filtering capabilities, locally enforced through your >> prioritized trees of life, liberty & property, and also your knowledge of >> good and evil. >> >> 20 - add a new delayed redirector, on Carol's side, so a remotePromise >> resolution will be a tree-way exchange for the ratchet exchange: carol -> >> farRef: alice -> scope internalize: carol -> ack redirector: alice -> wire >> encrypted >> >> 21 - group ratcheting: presence event leads to re-rendezvous with the >> qufrum, majority/super-majority online election/karma emoji disbersement >> >> On 12/28/2016 1:55 PM, Charlie Robbats wrote: >> >>> 16 - pass the galaxy test: https://docs.google.com/presen >>> tation/d/1FWcSJfZITITckrXyfihpuPnX5xf0e4kOhCnsoRFyLfI/edit#slide=id.p >>> >>> 17 - exchange access categories with contractual code migration >>> >>> 18 - emoji feedback >>> >>> >>> On 12/28/2016 1:11 PM, Charlie Robbats wrote: >>> >>>> Hi! Here's the master plan, always malleable; if anyone sees something >>>> interesting to dive into, you are welcome. >>>> >>>> Future Features >>>> --- >>>> 0 - fix vector corruption through pbeStorage >>>> 1 - java/squeak interoperability >>>> 2 - FEC-RS testing/repair >>>> 3 - define QR-coded PBE identity >>>> 4 - switch to SHA256/scrypt PBE for identities >>>> 5 - porciniz >>>> 6 - DNS/meta layer injection >>>> 7 - stack hacking/network discovery/graphing/routing >>>> 8 - blockchain >>>> 9 - support non-secret finite field key exchange ("Whisper-2")-Oops/add >>>> dataEncoder to EncoderData >>>> 10 - ratcheting/group join/leave ratcheting >>>> 11 - asn1derMetaPragmaEncoder/class autocreation and meta >>>> qufrums/qufrum construction/data replication >>>> 12 - thermoHarmonics3NeuralRuleGA (PV = nrT + distortion) >>>> 13 - Enumify Types, pass named closures, scope projection & protection, >>>> detach class/classVariables >>>> 14 - autocoerce local eventual calls to immediate sends with reactor >>>> pipelining >>>> 15 - start a Mutter system news website >>>> >>>> --- >>>> >>>> Encoder Velocities: >>>> >>>> DBL_AESede/asn1der: 100 KB compressed data chunks received: 100 >>>> send time: 1096 ms, rate: 73 Mbs. >>>> receive time: 1096 ms. rate: 73 Mbs. >>>> >>>> DBL_AESede/bytes: 100 KB compressed data chunks received: 100 >>>> send time: 1094 ms, rate: 73 Mbs. >>>> receive time: 1095 ms. rate: 73 Mbs. >>>> >>>> DBL_AESede,json: 100 KB compressed data chunks received: 10 >>>> send time: 2107 ms, rate: 4 Mbs. >>>> receive time: 2107 ms. rate: 4 Mbs. >>>> --- >>>> >>>> >>> >> > >

Dec. 29, 2016

Re: [Pharo-users] Merry Christmas

by Stephane Ducasse

Yes you too. Fun, health and business On Thu, Dec 29, 2016 at 8:04 PM, Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: > Merry Christmas pharoers I wish happiness , health and unending desire for > creative with the excitement of a kid

Dec. 29, 2016