In this article I am going to describe the required steps needed for accessing Android Camera (or Default Camera Interface) using Qt. Unfortunately OpenCV does not provide a reliable way of connecting to Camera in Android so you have go for a method like this if you intend to write an Android application which uses OpenCV […]
OpenCV 2.4.13 was released just a few days ago and as a tradition I had to check if a static build with Microsoft Visual C++ 2010 (MSVC2010) 32-bit produced any errors or not. Fortunately, everything went quite smoothly (except a few common warnings here and there) and I was able to successfully build it so if […]
In this post I am going to share a very simple but crucial parts of my QRecorder program which is recording images into videos. At the time of writing this article, Qt doesn’t allow recording of video files and OpenCV with its multi-platform support seems to be the best solution.
You can use OpenCV to easily and quickly apply a Sepia filter to your images, as seen in these pictures. Here is how:
Today I released the first version of Cardiograph program. It is a program that allows you to measure (monitor) your heart rate using your computer’s webcam. It is designed to be simple and accurate. Currently only Windows is supported but hopefully more operating systems will be supported in the future. Head to Cardiograph Official Page to download […]
QRecorder (version 1.0.1) is a new application I wrote for screen recording. Record your desktop activities with this simple tool. It requires no configurations and it’s easy to use. It supports all windows versions from the good old XP to the recent Windows 10. You can record part or whole of the screen. You can make […]
In Machine Vision there is a magical trick that involves Fourier transformation of an image and I would like to share it with you today. I learned this long ago from a professor of mine but I remember back then there was not much experience and information about this on the web. Also there was […]
OpenCV 3.1 was released yesterday and with a first look I noticed that prebuilt libraries for x86 VC10 (MSVC2010) are nowhere to be found in the installation folder. In fact there is no x86 folder to begin with. Some of my recent apps all are built using MSVC2010 so I had to build OpenCV myself. […]
You might have noticed that trying to read images that have special characters (such as Ü, Ö or other non-Ascii characters) with imread function in OpenCV will lead to crash. I noticed this while trying to open files with special Turkish characters (but I assume it is the same with Spanish, French, German or any other languages.). […]
Finding edges is crucial in many image processing applications because it gives a better understanding of the elements in a picture. This post contains download link to an example project (ready to build and run) in Qt that uses nothing but the existing Qt classes, namely QImage, to detect and display edges in a QImage.