Fail to use yolov5x - 7.0 in OpenCV 4.6.0 c++

jeffreyhaoau commented 1 year ago

Search before asking

[X] I have searched the YOLOv5 issues and found no similar bug report.

YOLOv5 Component

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Bug

Fail to use yolov5x - 7.0 in OpenCV 4.6.0 c++ Fail to use yolov5x - 7.0 in OpenCV 4.7.0 c++ Success to use yolov5x - 7.0 in OpenCV 4.6.0 Python

Success to use yolov5x - 6.2 in OpenCV 4.6.0 c++ Success to use yolov5x - 6.2 in OpenCV 4.6.0 Python

Success to use yolov5x - 6.1 in OpenCV 4.6.0 c++ Success to use yolov5x - 6.1 in OpenCV 4.6.0 Python

It only happens on yolov5x. No issue with yolov5l, yolov5m.

https://raw.githubusercontent.com/spmallick/learnopencv/master/Object-Detection-using-YOLOv5-and-OpenCV-DNN-in-CPP-and-Python/yolov5.cpp

Convert to onnx for opencv dnn. $ python export.py --weights yolov5x.pt --include onnx

This error (Segmentation Fault) is relevant to this: line 77: const int rows = 25200; The loop (line79-118) will crash.

Environment

Ubuntu 22.04 CPU Yolov5 - 7.0 OpenCV 4.6.0, c++ DNN API

Minimal Reproducible Example

No response

Additional

No response

Are you willing to submit a PR?

[X] Yes I'd like to help by submitting a PR!

github-actions[bot] commented 1 year ago

👋 Hello @jeffreyhaoau, thank you for your interest in YOLOv5 🚀! Please visit our ⭐️ Tutorials to get started, where you can find quickstart guides for simple tasks like Custom Data Training all the way to advanced concepts like Hyperparameter Evolution.

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glenn-jocher commented 1 year ago

Hello @jeffreyhaoau,

Thank you for reporting this issue. We're sorry to hear that you're encountering this problem with using YOLOv5 - 7.0 in OpenCV 4.6.0 C++.

We appreciate you including all of the environment information and other details in your report as well. This will help us to more effectively determine the root of the issue.

Regarding your point about the segmentation faults, it seems like the variable declaration const int rows = 25200 may be causing the issue. We suggest reviewing other parts of your codebase to determine the cause of the segmentation fault in your program.

If you have any further questions or concerns, please do not hesitate to ask. We'll do our best to help you resolve this issue. Thank you for your attention to this matter.

Best regards, Glenn Jocher

jeffreyhaoau commented 1 year ago

@glenn-jocher glenn-jocher Sorry, I forgot this: It only happens on yolov5x. No issue with yolov5l, yolov5m.

glenn-jocher commented 1 year ago

Hi @jeffreyhaoau,

Thank you for providing that additional information. It's helpful to know that the issue only appears to occur with YOLOv5x and not with YOLOv5l or YOLOv5m.

Given that, it's possible that there may be some differences in the implementation or structure of these models that could be causing the issue with YOLOv5x in OpenCV 4.6.0 C++. We suggest reviewing your code and checking for any differences in these areas that could be contributing to the problem.

If you have any further questions or concerns, please don't hesitate to ask. We'll continue to do our best to assist you in troubleshooting this issue.

Best regards, Glenn Jocher

ultralytics / yolov5