Display image in second thread, OpenCV?

Question

I have a loop to take in images from a high speed framegrabbger at 250fps.

/** Loop processes 250 video frames per second **/
while(1){
  AcquireFrame();
  DoPr         


        

Answer 1

I'm sorry I can't give you a better answer right now, but it seems that your question is not about the structure of your program but rather about the tool you should use to implement multithreading. For this I would recommend Qt. I have been using Qt for a while but I'm just now getting into multithreading.

It seems to me that your best bet might be a QReadWriteLock. This allows you to read from an image but the reader thread will give up its lock when the writer thread comes along. In this case you could keep a copy of the image you last displayed and display it if the image is locked for writing.

Sorry again that I can't be more detailed but, like I said, I'm just getting into this as well. I'm basically trying to do the same thing that you are, but not nearly as fast :). Good luck!