Inconsistent shape for ConcatLayer #1789
Description
Exception : Inconsistent shape for ConcatLayer
FuncName cv::dnn::ConcatLayerImpl::getMemoryShapes
D:\a\opencv_files\opencv_files\opencv\modules\dnn\src\layers\concat_layer.cpp
Example:
using OpenCvSharp.Dnn;
private Net? _net;
_net = CvDnn.ReadNetFromOnnx("C:\1\best.onnx");
OS Windows 11 x64
the model is obtained as follows:
from ultralytics import YOLO
model = YOLO('best.pt')
model.export(format='onnx',
batch=1,
device='cpu',
simplify=True,
imgsz=640,
dynamic=True)
Opencv developers claim that the bug is fixed in version 4.10 on May 20, 2024
opencv/opencv#25485
Loaded OpenCvSharp4 ver 4.11.0.20250507
there is a solution https://github.com/LaurentBerger/dnnlegacy