OpenCV 4.2 with geforce 3050Ti

cudawarped · August 9, 2023, 4:50am

Ignore my previous comment, I think you need to add these lines

cyyever/opencv/blob/733319973e695c8e0071a15d243ed7a1e4cfba4c/cmake/FindCUDNN.cmake#L68


      
            if(NOT CUDNN_INCLUDE_DIR)
              find_path(CUDNN_INCLUDE_DIR
                cudnn.h
                DOC "location of cudnn.h"
              )
            endif()
          endif()
          
          # extract version from the include
          if(CUDNN_INCLUDE_DIR)
            if(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn_version.h")
              file(READ "${CUDNN_INCLUDE_DIR}/cudnn_version.h" CUDNN_H_CONTENTS)
            else()
              file(READ "${CUDNN_INCLUDE_DIR}/cudnn.h" CUDNN_H_CONTENTS)
            endif()
          
            string(REGEX MATCH "define CUDNN_MAJOR ([0-9]+)" _ "${CUDNN_H_CONTENTS}")
            set(CUDNN_MAJOR_VERSION ${CMAKE_MATCH_1} CACHE INTERNAL "")
            string(REGEX MATCH "define CUDNN_MINOR ([0-9]+)" _ "${CUDNN_H_CONTENTS}")
            set(CUDNN_MINOR_VERSION ${CMAKE_MATCH_1} CACHE INTERNAL "")
            string(REGEX MATCH "define CUDNN_PATCHLEVEL ([0-9]+)" _ "${CUDNN_H_CONTENTS}")

because the naming of the headers changed see PR to update to CUDA 11.0 below

for details.

As @crackwitz alluded to you are using an old version of OpenCV which pre-dates CUDA 11.0 so many many things could fail even if you manage to build it.

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OpenCV 4.2 with geforce 3050Ti

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