I'm looking for a specific form of facial recognition. I want to detect where all the faces are located (and that's all) on an image of students in a class-picture.
So in other words, I'm not trying to compare two faces and see if they match either.
How can I do this in C#? I can't seem to find any open-source projects on NuGet regarding this, and I've looked on CodePlex too.
My personal preference for any Computer Vision related needs is to use http://opencv.willowgarage.com/wiki/ , however, it isn't natively made for C#.
However, after a quick Google search, I found http://www.emgu.com/wiki/index.php/Main_Page which says "Emgu CV is a cross platform .Net wrapper to the Intel OpenCV image processing library. Allowing OpenCV functions to be called from .NET compatible languages such as C#, VB, VC++, IronPython etc. The wrapper can be compiled in Mono and run on Linux / Mac OS X."
Now that Face has retired since it was purchased by Facebook, I use Sky Biometry, which has a C# .NET API and is free.
It's cloud based and obviously requires an Internet connection, but who cares.
I recommend checking FaceRecognition.Net (https://github.com/takuya-takeuchi/FaceRecognitionDotNet) that is base on Face Recognition (https://github.com/ageitgey/face_recognition) that is implemented in Python. Both are Open Source with MIT license.
Another option is Cognitive Services – Face that is from Microsoft and you can use it from Azure directly or from a local Docker. Here you can find more about it: https://learn.microsoft.com/en-us/azure/cognitive-services/face/
Related
I currently have written an API to a SIP phone system, and would like to integrate a full on SIP softphone into what I already have.
I'm looking to integrate an open source softphone that:
includes a full featured SIP stack
is written in C#, or easily integrable into a C# application
is BSD or similarly licensed
exposes basic features (dialing, transferring, holding, etc) in a fairly high level way (i.e. it would be easy to just write a UI for it and viola I have a custom softphone)
My goal is to make a proof of concept softphone quickly to be able to demo. I'd take a completely built softphone that was BSD if I could just rewrite the C# front end.
Thanks and I look forward to the invariably useful feedback.
As far as I know there isn't an open source C# softphone out there. My own SIP stack is C# and open source but it's used for a SIP application server and is missing chunks of functionality needed for a softphone such as an RTP implementation, codecs, audio device interop etc.
The closest thing I know of that may suit your needs is sipek voip (I'm pretty sure that used to be called pjsip.net) which is a C# wrapper on the pjsip open source SIP and media libraries which are themselves written in C and licensed under GPL; so pjsip doesn't meet your licensing requirement even if you were prepared to use the wrapper library.
The most efficient path for you may be to look around the existing softphones out there and find one that offers skinning services. IN this question which is similar to yours it sounds like the developer is using zoiper. I know counterpath also offer skinning but it's not cheap. Of course if you've got a few months of developer resources sitting idle I'm sure you could build on my or soeon
We are using the mizu webphone. It is not written in C# but it says that it is cross platform so i think that you should be able to use it with C# as well (we are using it from ASP .NET)
I currently have a project that operates in Windows using P/Invokes to call the Smartcard API; however, since I've now open-sourced the project and put it on Google Code, I'd be interested in making it work for Linux peeps on Mono.
The blockade to doing that however, is the smartcard code; I have absolutely zero familiarity with talking to smartcards under Linux and Google searches haven't revealed anything enlightening.
Well, I found my answer; PCSC-lite implements the entire WinSCard API in a compatible format, so all I've needed to do is bundle a small .exe.config with the program so that mono will replace the DllImport for WinSCard.dll with pcsclite.so.1 at runtime and everything works out of the box.
I think PCSC is what youre are looking for. Haven't used it because I don't have to deal with Mono/Linux, though I can't give you any details about it.
I converted the jar file into .net dll file using IKVM. Now i am trying to consume it in my .net app, but it seems that the qrcodereader.decode requires BinaryBitmap which further requires Luminance as parameter. Please guide me in this situation since i couldn't find the right classes that implements the abstract classes.
Luminance sources are platform specific. You can find examples in the android, java2se, and iphone directories. I don't know if there are any luminance sources in the csharp directory but that code is not actively maintained so even if there is, it'll likely take cleanup adaptation (not to mention I have no idea if it's compatible with IKVM).
I wrote a simple scanning code using WIA. I don't have a scanner device so I can't test it. Can I simulate a WIA device to testing it ?
This does definitely what you want: https://github.com/twain/wia-on-twain
I simulates a scanner and publishes a TWAIN and a WIA interface. Also the scanning of a graphical page is simulated, so you can try out different resolutions and colour schemes.
Not sure, but maybe http://scanworkssoftware.com/twainimporter.aspx will help you
or, Go to http://twain.org and under the "Fast Find" section click the last link titled "Sample Data Source & Application". This will install TWAIN 2.0 and a sample source named "TWAIN2 FreeImage Software Scanner" which has some basic scanning features. It does not have a driver interface but will let you preform scans and Get/Set some general properties.
With enough effort and the WIA SDK (and probably the Windows DDK as well) you probably can. But it will be a large amount of effort, especially compared to the price tag of a cheap scanner.
I'm assuming your time is worth something. If this is a hobby project, then compare the price of a cheap scanner to the time saved that can be spent working on the fun parts of the project. If this is a work project, then the time saved is more valuable to your customer than to you, but there should still be business case for buying hardware that will save more time than it cost.
I know this question is very old, but I'll post this as a reference.
Since Windows 10 Microsoft has made a GitHub repository with sample drivers, including the WIA ones:
https://github.com/Microsoft/Windows-driver-samples/tree/master/wia
I wasn't able to test them yet, but they should create a test device.
Well, try if this virtual webcam supports the WIA interface: http://www.soundmorning.com/
If so, you are all set and ready to go.
You can also search for "Fake webcam", there are many versions.
One thing to be concerned about is that all WIA drivers are not created equally. We recently had trouble using some Brother WIA drivers that were supposedly certified. The driver would not allow access to the feeder tray. We ended up having to write TWAIN integration also.
(1)
http://graphics.kodak.com/docimaging/US/en/Support_Center/Document_Scanners/Desktop/i65_Scanner/Support/Drivers_And_Downloads/i55_and_i65_Scanner_Driver/index.htm
InstallSoftware__v1.7.exe
(2)
http://sourceforge.net/projects/twain-samples/files/TWAIN%202%20Sample%20Application/
WIAonTWAIN_SDK.msi
(3)
For testing only you can also use the free demo version of the commercial file import TWAIN driver XPCTWAIN.
Product info: http://www.jse.de/products.html#xpctwain
Demo download: http://www.jse.de/download/setup_xd.exe
setup_xd.exe
Sounds like an occasion where writing the virtual device that is WIA compat might be the thing that needs to be given back to the community.
How do I use Windows Vista's FOLDERID API in order to retrieve filepaths for "known folders" such as System or Windows? I've seen some APIs but I don't know how to import them properly. And yes, I know this is a very newbie question, but I spent a half hour googling and couldn't find the answer; I'd also appreciate a way to find an answer to questions like this in the future. :-)
Edit 1: So apparently the relevant functions are included inside of a DLL, and not any "proper" C# class/library that can be imported. The pinvoke syntax might work, although I was hoping for an OOP interface, not a function. Will test.
Edit 2: So I am very new to C# and don't know what a managed interface is. System.Environment.GetFolderPath is perfect.
Take a look at PInvoke SHGetKnownFolderPath
There's also a managed API:
Environment.GetFolderPath
but it doesn't contain all the folders.
This morning I read about Vista Bridge. It may help.
"Many of you don’t know about the Vista Bridge sample library, what can it do or even where you can find it. Let’s start with the basics; i.e. definitions. Vista Bridge is a sample library that contains managed wrappers for a number of Windows Vista APIs that are not exposed in the .NET Framework. The wrappers include common Open and Save file dialogs and new Vista advanced task dialogs. So, where to download it? There are three ways to obtain the sample library. It’s included in both the Windows SDK for Windows Vista Update and in the newer Window SDK for Windows Server 2008 and .Net Framework 3.5; or a third option is to download the Vista Bridge sample library which is part of the Windows SDK Cross Technology samples. I recommend downloading the Windows SDK for Windows Server 2008 and .Net Framework 3.5, but if you don’t have the network bandwidth or just want the samples, then the last option should be the most suitable.
..."