Cropping and mirroring frames right from the buffer
In this recipe, we are going to show you how we can use two features of
openni::VideoStream that give us the ability to mirror or crop frames right from the device itself. This ability is available for all three outputs based on openni::VideoStream.
For saving more space, we decided to use the code from the Reading and showing a frame from the image sensor (color/IR) recipe of Chapter 3, Using Low-level Data, as a template and show you only the changes.
Getting ready
Create a project in Visual Studio 2010 and prepare it for working with OpenNI using the Creating a project in Visual Studio 2010 recipe of Chapter 2, OpenNI and C++. Then, configure Visual Studio 2010 to use OpenGL with the Configuring Visual Studio 2010 to use OpenGL recipe of Chapter 3, Using Low-level Data.
After that, please copy the code from the Reading and showing a frame from the image sensor (color/IR) recipe of Chapter 3, Using Low-level Data, to this project.
