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What are the QT performances on ARM9 ?

azzido

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Sunday, March 7th 2010, 5:52pm

What are the QT performances on ARM9 ?

Hi all

I need to develop an application based on image processing ( mouse pointer movement using eye tracking ) and for this I need your suggest.

My target is mini2440 with ARM920T at 400 Mhz. The time is critical for me. I want to move mouse pointer in real time.

Which is faster:

Image processing using QT installed on linux or Image processing using QT installed on wince ?

At the moment I have installed OpenCV on linux kernel 2.6.29 and I wrote an application that get some captures from camera and I applied a Blur filter on them. This takes about of 0.4 s to process a capture. Why so slowly ? Without blur filter I can save the captures at 15 fps. For this reason I want to try QT.

Thanks a lot.

ilpaso

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Wednesday, July 7th 2010, 10:24am

I'm trying to develop a simple Qt application on the same ARM9 board and linux embedded.
The performances are quite bad.
I read on a forum that WinCe + QtE is a little better than Linux + QtE on mini2440.

I developed an application with opencv a year ago but not on an ARM based device. In my opinion Opencv is faster than Qt in image processing.
Maybe you need only a code optimization in your opencv based algorithm.

bye

ilpaso