PROCESSOR-SDK-AM437X: About the version of OpenCV included in the SDK

kazuyuki Arai

Tool/software:

Hello Sitara fighters.

I am developing a system using the SDK(*) on a custom board we developed.
(*):PROCESSOR-SDK-LINUX-RT-AM437X(Version. 09.03.05.02)

When I checked with the Linux command "opencv_version", it returned "4.5.5".
However, the following document states "OpenCV 3.1." Which is correct?

https://software-dl.ti.com/processor-sdk-linux/esd/AM437X/latest/exports/docs/linux/Foundational_Components_OpenCV.html

Also, when creating an application, will the version be different when called from the program as an API?
(Compared to using it command-based)
Do I need to set the include file in /usr/include?

Best regards.
Kazu.

7 months ago

+1 Reese Grimsley 7 months ago

TI__Mastermind 18426 points

Hello Kazu-san,

Good catch. There is a version mismatch here.

What's in the SDK would be considered the correct version -- this is a documentation bug that I shall file.

I also see in the software manifest [2] for this SDK [1] that opencv 4.5.5 is mentioned.

The /usr/includes folder structure may be different with opencv4 vs. opencv3. The version you import as a library will match 4.5.5 headers and API's -- it will not look like OpenCV 3.1.

I believe the folder structure would be /usr/include/opencv4 instead of /usr/include/opencv3. Within this, there is an opencv2
I am seeing that the target filesystem may be missing the actual include directories here -- they will be in the SDK under the linux-devkit/sysroots instead, so you would need to cross compile the application (or copy them into your target filesystem)

Since there is no acceleration backend for OpenCV on AM437, there should no issues with compatibility in that respect.

Does this answer your secondary question about application integration?

[1] https://www.ti.com/tool/PROCESSOR-SDK-AM437X

[2] https://dr-download.ti.com/software-development/software-development-kit-sdk/MD-LazfM3DYxm/09.03.05.02/software_manifest_am437x-evm.htm

0 kazuyuki Arai 7 months ago in reply to Reese Grimsley

Prodigy 40 points

Hello Reese-san,

Thank you for your quick reply.

Reese Grimsley said:
I am seeing that the target filesystem may be missing the actual include directories here -- they will be in the SDK under the linux-devkit/sysroots instead, so you would need to cross compile the application (or copy them into your target filesystem)

OK, I'm developing in the native compilation environment, so I'll try copying it from "lunder inux-devkit/sysroots" to the target filesystem.
I'll comment again after I check it works.

Best regards.
Kazu.

0 kazuyuki Arai 6 months ago in reply to Reese Grimsley

Prodigy 40 points

Hello Reese-san,

I was able to use OpenCV 4.5.5 using the method you taught me.
Thank you very much.

Best regards.
Kazu.

0 Reese Grimsley 6 months ago in reply to kazuyuki Arai

TI__Mastermind 18426 points

Glad to help, and thanks for letting me know this worked! It is helpful to leave messages like this for future readers too :)

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PROCESSOR-SDK-AM437X: About the version of OpenCV included in the SDK