If an application runs and performs all required task for the user or client, doesn’t means that it is complete in all the sense. Using performance analysis tools like profiler we can find out how our application is performing internally means in terms of speed, memory usage and power utilization. There are lots of issues which can reduce performance of your application; and here is a list of some of them

To work with real-time video one needs at least two things - direct access to bitmaps and fast way to get frames from a video camera. To achieve the first goal one needs to keep in mind that Bitmaps are located on a shared heap that needs to be locked before any direct access can safely take place.