OPENCV部署ONNX模型报错 ERROR during processing node with 1 inputs and 1 outputs

在使用opencv部署onnx模型的时候出现以下报错

使用的是这一断代码

    file_model = 'best_cup.onnx'
    net = cv2.dnn.readNetFromONNX(file_model)

报错信息

[ERROR:0@0.059] global D:\a\opencv-python\opencv-python\opencv\modules\dnn\src\onnx\onnx_importer.cpp (1021) cv::dnn::dnn4_v20220524::ONNXImporter::handleNode DNN/ONNX: ERROR during processing node with 1 inputs and 1 outputs: [Identity]:(onnx_node!Identity_0) from domain='ai.onnx'

你是不是导出动态输入了？opencv不支持动态推理目前，只能以固定的NCHW导出

可以参考：

关于cv2.dnn.readNetFromONNX(path)就报ERROR during processing node with 3 inputs and 1 outputs的解决过程【独家发布】_那美那美的博客-CSDN博客当opencv在读onnx时cv2.dnn.readNetFromONNX(path)就报Number of input channels should be multiple of 3 but got 0 in outputs的解决办法，全网惟一指南

https://blog.csdn.net/qwentest/article/details/125576920

最后还是用了onnxruntime来做onnx模型