Merge pull request #27449 from nklskyoy:onnx-multifile

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Onnx multifile import #27449

Merge with https://github.com/opencv/opencv_extra/pull/1259

LLMs are larger than 2GB and don't fit into single file onnx. this patch adds support for importing large onnx models with external data

updated `opencv-onnx.proto` to version 1.18.0 [(https://github.com/onnx/onnx/releases/tag/v1.18.0](https://github.com/onnx/onnx/blob/v1.18.0/onnx/onnx.proto)

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake

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This commit is contained in:

nklskyoy

2025-07-16 15:50:32 +02:00

committed by GitHub

parent 709eabda16

commit 7a2f2a985f

10 changed files with 13749 additions and 1481 deletions

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modules/dnn/misc/onnx/opencv-onnx.pb.cc

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modules/dnn/misc/onnx/opencv-onnx.pb.h

+7128 -411

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