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I am looking forward to start a project that will use OCR , Object tracking and other Image processing algorithms on Android and I want to accelerate these algorithms using external hardware accelerators on FPGA using the Open Accessory API.
Do Image processing apps perform bad and needs custom hardware for acceleration ? Is there a resource to know about performance of image processing algorithms on smart phones and embedded systems without writing one ?
It’s only viable to do optimization after you have done measurements for your particular case.
If you need HW acceleration you might want to check out renderscript. It gives you access to GPU hardware to perform generic computations.