I’m training myself to learn machine learning and A.I. When I get started with Tensorflow for transfer learning, I would like to have some images for my training set. The images can be easily found by Google Image Search but I found no way to get all found images downloaded to my local machine. There’re some add-ons for Google Chrome such as Firefox but they don’t really work. They crash most of the time when I start to download them. Therefore I have to write myself a small tool to get this job done for me. In this blog post, I would like to show you how I made it with Python.
In previous post, I showed you how to implement a custom migration without using Entity Framework for Sqlite database in .Net core. In this post, I’ll use Entity Framework Migration to manage (upgrade / downgrade) our database structure. Both of approaches will work, you can choose one of 2 solutions as you prefer.
In last months there were 2 big frameworks for software development published: DotNetCore and Angular 2. They’re new and powerful. I’ve spent most of my free time to learn both of them. The combination of DotNetCore Web Api and Angular 2 give me a powerful development enviroment for building website or building web-view app (based on Apache Cordova). I’ve started to build some web apps with Angular 2 (for example YouTubeApp or my private dictionary EnDeVi). They are all my pet projects but it’s a good start for learning new stuffs. In this blog, I would like to write about DotNetCore and Sqlite like the previous post Sqlite with Entity Framework Code First and Migration. Basically there’s nothing new with this post, I just want to test how I can write a simple .NET core console connecting to Sqlite database.
During my training with Elasticsearch I would like to map a query with GET/POST method to C# syntax of NEST. It’s very helpful for me to see how NEST composes its internal queries and sends to Elasticsearch server. I just post my sample project here, maybe it’ll help you too.
Angular 2 is now on beta and ASP.NET 5 is on RC version. Both of them are almost near to final release. Use these versions for big projects right now is not a quite right decision because they are still being changed a lot. However, we can begin to make some demo projects to get familiar with new syntax and project templates. In this post, I show you how to make your first app with Angular 2 and ASP.NET 5. This post is only about how to configure so that Angular 2 works with ASP.NET 5.
I have introduced some candidates for OCR in the previous posts such as C# – OCR library candidates and C# – An example of OCR web service. Last year Microsoft published his new project for machine learning. The project is called Project Oxford. This project provides us the APIs for computer vision, face, emotion, video, speech, speaker recognition… The project is really interesting, you can learn more about it from its homepage. In this small post, I would like to illustrate how we can make a call to OCR service. OCR ist just a part of Computer Vision APIs.
In previous part C#,iTextSharp – PDF file – Insert/extract image,text,font, text highlighting and auto fillin, I listed some code listings for typical features of iTextSharp in editing PDF files. That post just gets growing up and too long, therefore I would like to continue the work in this second one.
In previous posts, we’ve got familiar with ASP.NET Web API and ASP.NET Identity. We can use ASP.NET Identity with multiple types of clients such as the desktop app, web app or mobile app for registering and authenticating users. The user will open an account with his email and password and then authenticate himself with services with registered info. If we don’t want to force user enter login data each time he accesses our services, we can get a token and use that token as the authentication key for any call to the server. Today I would like to extend our ASP.NET Web API with “Forgot Password” function so that user can reset his password in case he doesn’t remember it anymore.
I’m using a shared hosting service provided by Bluehost and have many websites on this account. Last month, November, my brother wrote me that he received a lot of traffic to his website although he didn’t update anything. He worried that maybe a web shell backdoor was injected into his website because he used some null-ed plugins and templates (My bro, please don’t use any null-ed components anymore, buy commercial components or use free ones instead). If his website got attacked, my blog will be also on target because we use same account for both websites. I decided to make a short analysis of Apache Access Log (AAL) to check if a web shell backdoor is installed on my shared hosting.
In previous posts for ASP.NET Web API, we’ve discussed how to get and post data to our REST web service. The service will be hosted then directly in IIS. Today I would like to make a small demo of ASP.NET Web API for streaming video in a self-host application. The self-host will be implemented by using Owin/Katana. Having this feature you can enable a web service embedded in your application and streaming data to any app connecting to your PC app.