System Information

Platform: Ubuntu + CUDA
Full test name: Test_Torch_nets.FastNeuralStyle_accuracy/1, where GetParam() = CUDA/CUDA_FP16

Detailed description

[ RUN      ] Test_Torch_nets.FastNeuralStyle_accuracy/1, where GetParam() = CUDA/CUDA_FP16
/home/ci/opencv/modules/dnn/test/test_common.impl.hpp:79: Failure
Expected: (normInf) <= (lInf), actual: 25.654 vs 25
  |ref| = 255
[  FAILED  ] Test_Torch_nets.FastNeuralStyle_accuracy/1, where GetParam() = CUDA/CUDA_FP16 (1900 ms)

Steps to reproduce

https://github.com/opencv/opencv/actions/runs/5487550395/jobs/9999154944?pr=23944

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
• I updated to the latest OpenCV version and the issue is still there
• There is reproducer code and related data files (videos, images, onnx, etc)