How to use opencv with amb82-mini

[dallim30]

Hi.

I want to use opencv with amb82-mini
I would appreciate any hints or advices on how to accomplish this feat.

Thanks!

[pcw0915]

hey me too.
I need opencv for text overlay on RTSP video

[pammyleong]

Hi @dallim30 @pcw0915,

For now, our board does not support OpenCV.

@pcw0915 We have an API called VideoStreamOverlay; you can use it to do text overlay on RTSP video.

You can refer to this API document for more information.
https://www.amebaiot.com/en/rtl8735b-arduino-api-video-videostreamoverlay/

[pcw0915]

I’ve already seen that post. Most of the links to github examples are not accessible.

[Kelvin_Huang]

Hi @pcw0915,

Please refer to the links:

ambiot/ambpro2_arduino/blob/main/Arduino_package/hardware/libraries/Multimedia/examples/MotionDetection/LoopPostProcessing/LoopPostProcessing.ino

ambiot/ambpro2_arduino/blob/main/Arduino_package/hardware/libraries/NeuralNetwork/examples/RTSPFaceDetection/RTSPFaceDetection.ino

We will fix the documentation soon.

Thank you.

[pcw0915]

We’ve already seen those examples. What I need is to overlay information such as the current time or current frame in text at the bottom of the RTSP.

[pammyleong]

Hi @pcw0915, please refer to this example here. I hope that it can help you at this moment. Recently, NTPClient Library is added into the Arduino SDK and will be released in our next release, 4.0.6 (https://github.com/ambiot/ambpro2_arduino/tree/dev/Arduino_package/hardware/libraries/NTPClient). I have tried to overlay the time on the video stream using StreamRTSP->VideoOnly example. Hope it helps!

VideoOnly.zip (1.3 KB)

[pcw0915]

@pammyleong

@pammyleong

example here. I hope that it can help you at this moment. Recently, NTPClient Library is added into the Arduino SDK and will be released in our next release, 4.0.6 (https://github.com/ambiot/ambpro2_arduino/tree/dev/Arduino_package/hardware/libraries/NTPClient). I have tried to overlay the time on the video stream using StreamRTSP->VideoOnly example. Hope it helps!

VideoOnly.zip (1.3 KB)

this example here. I hope that it can help you at this moment. Recently, NTPClient Library is added into the Arduino SDK and will be released in our next release, 4.0.6 (https://github.com/ambiot/ambpro2_arduino/tree/dev/Arduino_package/hardware/libraries/NTPClient). I have tried to overlay the time on the video stream using StreamRTSP->VideoOnly example. Hope it helps!

VideoOnly.zip (1.3 KB)

THX It works very good!

[gkirill]

Hello, @pammyleong ! How to set the system time without using the RTSP module in standart SDK for working with osd?

[sku]

Thank you!
I got OSD working with http continuous jpeg stream but it only displays a maximum of 19 characters. I don’t see anything in VideoStreamOverlay.h or osd_api.h to change this number. Is there something I’ve overlooked?