What's the difference between the ISP and the DSP?

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ISP - Image Signal Processor
DSP - Digital Signal Processor

ISP is a HW accelerator for known algorithms in the realm of image processing.
There is no access to modify ISP FW or running your own programs on an ISP.
There is a certain amount of control through the driver to impact the behaviour.
DSP is more general purpose in which Hailo utilizes to do the pre & post processing.

The following table summarizes the main functionality utilized on Hailo-15:

Hello,

I’m looking for an example of how to use the blur (regions of interest) function in Hailo-15.

I’ve only found an example in Hailo-8 using OpenCV (using CPUs) :

tappas/core/hailo/apps/x86/re_id/re_id_overlay.cpp at master · hailo-ai/tappas · GitHub (line 65).

Regards,

Benjamin

The blur API is defined in section 2.7 of the Hailo DSP user guide document.
For an example how to use the API, you can use as reference:

blur API is not explicitly used, but you can check other DSP API functions being called there and use in the same manner