It's probably due to how you padded the filter before DFT'ing it.  I bet you had it in a corner instead of in the middle.  Since convolution via DFT is circular convolution, it's not so much of a quadrant swap as it is a wrap around.  I believe that if you put the non-zero taps in the middle that it will fix the problem.

applying convolution theorem swaps quadrants
I want to film my puppies, but when they see me, they do not act naturally.

Does there exist any app for iPhone/Mac that allows me:


to see on the Macbook what my iPhone camera "sees" via WiFi?
to remotely, from the Mac, start/stop recording on the iPhone?


I'm currently trying iKeyboardRemote but it allows me only start and stop recording via Bluetooth (and without any feedback). I would like to see when to start recording and when to stop.

I have found several apps in the App Store that allow remote video between two iPhones or iPhone/iPad, but found none for iPhone to Mac OS X.  (I don't have two iPhones, nor an iPad).

Unfortunately, I have upgraded to 6.1.3 on 4S, so I can't jailbreak it for installing a VNC server, which would be the easiest and best solution.

I'm hoping I missed some apps — can anybody suggest a solution?
