OpenCV Tutorial - Part 5

Eugene Khvedchenya published on 2012-07-14

Hello readers! The fifth part of the OpenCV Tutorial is here! In this post we will add options pane for our samples. In the end of this chapter our application will receive options interface as shown on screenshot. But first, let me remind you (if you came here for the first time) what is happening here. The “OpenCV Tutorial” is a open-source project maintained by me (Eugene Khvedchenya). My goal - create a iPhone/iPad application to demonstrate various image processing algorithms of OpenCV library and how to use them in iOS applications. Please check previous parts if you haven’t done this yet:

Part 1 - Introduction
Part 2 - Writing a base UI
Part 3 - Video and image processing
Part 4 - Correction of mistakes Also, there is great OpenCV Tutorial roadmap. I’m trying to follow it. As usually, all source code can be found on a GitHub: OpenCV Tutorial.

OpenCV Tutorial - Part 4

Eugene Khvedchenya published on 2012-07-07

This is the fourth part of the OpenCV Tutorial. In this part the solution of the annoying iOS video capture orientation bug will be described. Of course that’s not all. There are some new features - we will add processing of saved photos from your photo album. Also to introduce minor interface improvements and I’ll show you how to disable unsupported API like video capture in your app and run in on iOS Simulator.

OpenCV Tutorial - Part 3

Eugene Khvedchenya published on 2012-06-27

In Part 1 and Part 2 we created base application for our “OpenCV Tutorial” application. In this part we add video source to process frames using our samples and present the result to user. As usual, you can find source code for this application at github. Video capture in iOS At this moment (as far as i know) there OpenCV’s cv::VideoCapture does not support iOS platform. Therefore we have to use iOS AVFoundation API to setup video capture.

OpenCV Tutorial - Part 2

Eugene Khvedchenya published on 2012-06-24

Screen Shot 2012-06-24 at 1.27.46 PM In the previous step we created Master-Detail XCode project and linked OpenCV library to it. Also we defined a base interface for all samples. Today we’ll write some UI logic to integrate our samples into the application. One ring to rule them all Since we are going to store a lot of samples (i hope so), we have to store them somewhere. I think for our application the ideal place to save them is our application delegate class.

OpenCV Tutorial - Part 1

Eugene Khvedchenya published on 2012-06-23

As i recently mentioned, i decided to write a brand new OpenCV tutorial application for iPhone/iPad devies. This development is open-source and anyone can access it on https://github.com/BloodAxe/OpenCV-Tutorial repository page. Your help are welcome to write a UI for this app and help writing sample demonstration cases. Feel free to clone repository and make your contribution!

Rewriting OpenCV sample project for iOS

Eugene Khvedchenya published on 2012-06-19

A lot of changes been made since I posted a tutorial of using OpenCV library on iPhone/iPad devices. It was the time of iOS 4.x and OpenCV 2.1. The time to rewrite the whole sample project has come. With this post I announce that I going to update my sample project and I ask for your help. My idea is to write a project which will demonstrate use of several common computer vision algorithms.