我在ubuntu 14.04上安装了opencv2。我想再次安装它，关闭cuda。我该怎么做呢？ 我的尝试： 找到opencv安装的路径：
>>> import cv2
>>> cv2.__file__
'/usr/local/lib/python2.7/dist-packages/cv2.so'
我找到了cv2.so的位置：
$ sudo find / -name cv2.so
/usr/local/lib/python2.7/dist-packages/cv2.so
/usr/lib/python2.7/dist-packages/cv2.so
我还试图找到其他opencv文件
$ sudo find / -name *opencv*
/var/lib/dpkg/info/libopencv-photo-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-legacy2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-legacy2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-imgproc2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-calib3d-dev:amd64.list
/var/lib/dpkg/info/libopencv-core2.4:amd64.list
/var/lib/dpkg/info/libopencv-legacy-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-objdetect2.4:amd64.list
/var/lib/dpkg/info/libopencv-dev.list
/var/lib/dpkg/info/libopencv-highgui-dev:amd64.list
/var/lib/dpkg/info/libopencv-ocl2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-ts-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-ts2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-videostab2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-ts2.4:amd64.list
/var/lib/dpkg/info/libopencv-objdetect2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-superres2.4:amd64.postinst
/var/lib/dpkg/info/libopencv2.4-java.list
/var/lib/dpkg/info/libopencv-videostab2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-video2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv2.4-jni.list
/var/lib/dpkg/info/libopencv-gpu2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-flann-dev:amd64.list
/var/lib/dpkg/info/libopencv-highgui-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-calib3d2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-gpu2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-videostab-dev:amd64.list
/var/lib/dpkg/info/libopencv-photo2.4:amd64.list
/var/lib/dpkg/info/libopencv-video-dev:amd64.list
/var/lib/dpkg/info/libopencv-imgproc2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-flann-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-features2d2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-videostab2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-ts-dev:amd64.list
/var/lib/dpkg/info/libopencv-contrib2.4:amd64.list
/var/lib/dpkg/info/libopencv-legacy2.4:amd64.list
/var/lib/dpkg/info/libopencv-superres2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-video-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-stitching2.4:amd64.list
/var/lib/dpkg/info/libopencv-flann2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-gpu2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-flann2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-imgproc2.4:amd64.list
/var/lib/dpkg/info/libopencv-ts2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-stitching2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-features2d2.4:amd64.list
/var/lib/dpkg/info/libopencv-superres2.4:amd64.shlibs
/var/lib/dpkg/info/opencv-data.list
/var/lib/dpkg/info/libopencv-core2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-ml2.4:amd64.list
/var/lib/dpkg/info/libopencv-superres-dev:amd64.list
/var/lib/dpkg/info/libopencv-flann2.4:amd64.list
/var/lib/dpkg/info/libopencv-photo-dev:amd64.list
/var/lib/dpkg/info/libopencv-contrib2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-imgproc-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-flann2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-core2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-stitching-dev:amd64.list
/var/lib/dpkg/info/python-opencv.prerm
/var/lib/dpkg/info/opencv-data.md5sums
/var/lib/dpkg/info/libopencv-imgproc2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-flann2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-stitching2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-ocl-dev:amd64.list
/var/lib/dpkg/info/libopencv-calib3d2.4:amd64.postinst
/var/lib/dpkg/info/libopencv2.4-java.md5sums
/var/lib/dpkg/info/libopencv-imgproc-dev:amd64.list
/var/lib/dpkg/info/libopencv-ocl-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-objdetect2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-stitching-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-ml2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-legacy-dev:amd64.list
/var/lib/dpkg/info/libopencv-superres2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-photo2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-calib3d2.4:amd64.list
/var/lib/dpkg/info/libopencv-calib3d2.4:amd64.postrm
/var/lib/dpkg/info/python-opencv.postinst
/var/lib/dpkg/info/libopencv-superres2.4:amd64.list
/var/lib/dpkg/info/libopencv-stitching2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-ts2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-features2d-dev:amd64.md5sums
/var/lib/dpkg/info/python-opencv.list
/var/lib/dpkg/info/libopencv-features2d-dev:amd64.list
/var/lib/dpkg/info/libopencv-videostab-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-contrib2.4:amd64.md5sums
/var/lib/dpkg/info/python-opencv.md5sums
/var/lib/dpkg/info/libopencv-ml2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-ocl2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-objdetect-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-contrib2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-stitching2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-highgui2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-ts2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-calib3d2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-gpu2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-gpu-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-ml2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-objdetect-dev:amd64.list
/var/lib/dpkg/info/libopencv-video2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-contrib2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-ocl2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-core2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-core-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-legacy2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-photo2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-videostab2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-calib3d-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv2.4-jni.md5sums
/var/lib/dpkg/info/libopencv-ml2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-video2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-dev.md5sums
/var/lib/dpkg/info/libopencv-ml-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-imgproc2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-video2.4:amd64.list
/var/lib/dpkg/info/libopencv-core-dev:amd64.list
/var/lib/dpkg/info/libopencv-ml-dev:amd64.list
/var/lib/dpkg/info/libopencv-legacy2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-features2d2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-superres-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-photo2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-ocl2.4:amd64.list
/var/lib/dpkg/info/libopencv-gpu2.4:amd64.list
/var/lib/dpkg/info/libopencv-objdetect2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-highgui2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-highgui2.4:amd64.list
/var/lib/dpkg/info/libopencv-contrib-dev:amd64.md5sums
/var/lib/dpkg/info/libopencv-features2d2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-core2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-objdetect2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-gpu-dev:amd64.list
/var/lib/dpkg/info/libopencv-highgui2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-features2d2.4:amd64.postrm
/var/lib/dpkg/info/libopencv-contrib-dev:amd64.list
/var/lib/dpkg/info/libopencv-video2.4:amd64.postinst
/var/lib/dpkg/info/libopencv-videostab2.4:amd64.list
/var/lib/dpkg/info/libopencv-photo2.4:amd64.md5sums
/var/lib/dpkg/info/libopencv-ocl2.4:amd64.shlibs
/var/lib/dpkg/info/libopencv-highgui2.4:amd64.postrm
/usr/local/include/opencv2
/usr/local/include/opencv2/opencv.hpp
/usr/local/include/opencv2/opencv_modules.hpp
/usr/local/include/opencv
/usr/local/bin/opencv_interactive-calibration
/usr/local/bin/opencv_annotation
/usr/local/bin/opencv_visualisation
/usr/local/bin/opencv_traincascade
/usr/local/bin/opencv_createsamples
/usr/local/bin/opencv_version
/usr/local/lib/libopencv_imgcodecs.so.3.2
/usr/local/lib/libopencv_photo.so.3.2
/usr/local/lib/libopencv_stitching.so
/usr/local/lib/libopencv_core.so
/usr/local/lib/libopencv_features2d.so
/usr/local/lib/libopencv_dnn.so.3.2
/usr/local/lib/libopencv_calib3d.so.3.2
/usr/local/lib/pkgconfig/opencv.pc
/usr/local/lib/libopencv_videostab.so
/usr/local/lib/libopencv_dnn.so
/usr/local/lib/libopencv_video.so
/usr/local/lib/libopencv_shape.so.3.2.0
/usr/local/lib/libopencv_video.so.3.2
/usr/local/lib/libopencv_stitching.so.3.2
/usr/local/lib/libopencv_core.so.3.2
/usr/local/lib/libopencv_ml.so
/usr/local/lib/libopencv_highgui.so
/usr/local/lib/libopencv_core.so.3.2.0
/usr/local/lib/libopencv_objdetect.so
/usr/local/lib/libopencv_videostab.so.3.2
/usr/local/lib/libopencv_superres.so
/usr/local/lib/libopencv_ml.so.3.2
/usr/local/lib/libopencv_imgcodecs.so
/usr/local/lib/libopencv_video.so.3.2.0
/usr/local/lib/libopencv_flann.so
/usr/local/lib/libopencv_imgproc.so.3.2.0
/usr/local/lib/libopencv_imgproc.so
/usr/local/lib/libopencv_videoio.so.3.2.0
/usr/local/lib/libopencv_calib3d.so
/usr/local/lib/libopencv_photo.so.3.2.0
/usr/local/lib/libopencv_superres.so.3.2.0
/usr/local/lib/libopencv_videostab.so.3.2.0
/usr/local/lib/libopencv_superres.so.3.2
/usr/local/lib/libopencv_features2d.so.3.2.0
/usr/local/lib/libopencv_objdetect.so.3.2
/usr/local/lib/libopencv_highgui.so.3.2.0
/usr/local/lib/libopencv_photo.so
/usr/local/lib/libopencv_imgproc.so.3.2
/usr/local/lib/libopencv_videoio.so
/usr/local/lib/libopencv_highgui.so.3.2
/usr/local/lib/libopencv_videoio.so.3.2
/usr/local/lib/libopencv_flann.so.3.2.0
/usr/local/lib/libopencv_shape.so
/usr/local/lib/libopencv_dnn.so.3.2.0
/usr/local/lib/libopencv_ml.so.3.2.0
/usr/local/lib/libopencv_shape.so.3.2
/usr/local/lib/libopencv_features2d.so.3.2
/usr/local/lib/libopencv_calib3d.so.3.2.0
/usr/local/lib/libopencv_stitching.so.3.2.0
/usr/local/lib/libopencv_objdetect.so.3.2.0
/usr/local/lib/libopencv_imgcodecs.so.3.2.0
/usr/local/lib/libopencv_flann.so.3.2
/usr/include/opencv2
/usr/include/opencv2/opencv.hpp
/usr/include/opencv2/opencv_modules.hpp
/usr/include/opencv
/usr/bin/opencv_performance
/usr/bin/opencv_traincascade
/usr/bin/opencv_createsamples
/usr/bin/opencv_haartraining
/usr/share/man/man1/opencv_haartraining.1.gz
/usr/share/man/man1/opencv_performance.1.gz
/usr/share/man/man1/opencv_createsamples.1.gz
/usr/share/man/man1/opencv_traincascade.1.gz
/usr/share/lintian/overrides/libopencv2.4-jni
/usr/share/lintian/overrides/libopencv-core-dev
/usr/share/java/opencv.jar
/usr/share/java/opencv-247.jar
/usr/share/doc/libopencv-objdetect-dev
/usr/share/doc/libopencv-ocl-dev
/usr/share/doc/libopencv-videostab-dev
/usr/share/doc/libopencv-core2.4
/usr/share/doc/libopencv-highgui2.4
/usr/share/doc/libopencv-video-dev
/usr/share/doc/libopencv-ml-dev
/usr/share/doc/libopencv-dev
/usr/share/doc/libopencv-gpu-dev
/usr/share/doc/libopencv-objdetect2.4
/usr/share/doc/libopencv-flann2.4
/usr/share/doc/libopencv-ts2.4
/usr/share/doc/libopencv-superres2.4
/usr/share/doc/libopencv-features2d2.4
/usr/share/doc/libopencv-imgproc-dev
/usr/share/doc/libopencv-video2.4
/usr/share/doc/libopencv-stitching-dev
/usr/share/doc/libopencv-photo-dev
/usr/share/doc/libopencv-ts-dev
/usr/share/doc/libopencv-contrib2.4
/usr/share/doc/libopencv2.4-java
/usr/share/doc/libopencv-ml2.4
/usr/share/doc/libopencv2.4-jni
/usr/share/doc/libopencv-photo2.4
/usr/share/doc/libopencv-videostab2.4
/usr/share/doc/libopencv-stitching2.4
/usr/share/doc/libopencv-gpu2.4
/usr/share/doc/libopencv-flann-dev
/usr/share/doc/libopencv-calib3d-dev
/usr/share/doc/libopencv-ocl2.4
/usr/share/doc/libopencv-imgproc2.4
/usr/share/doc/libopencv-contrib-dev
/usr/share/doc/libopencv-highgui-dev
/usr/share/doc/opencv-data
/usr/share/doc/libopencv-superres-dev
/usr/share/doc/libopencv-legacy2.4
/usr/share/doc/libopencv-features2d-dev
/usr/share/doc/libopencv-core-dev
/usr/share/doc/libopencv-legacy-dev
/usr/share/doc/libopencv-calib3d2.4
/usr/share/doc/python-opencv
/usr/share/OpenCV/java/opencv-248.jar
/usr/share/opencv
/usr/lib/jni/libopencv_java248.so
/usr/lib/x86_64-linux-gnu/libopencv_features2d.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_calib3d.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_ml.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_video.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_photo.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_imgproc.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_video.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_stitching.so
/usr/lib/x86_64-linux-gnu/libopencv_superres.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_legacy.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_gpu.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_features2d.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_core.so
/usr/lib/x86_64-linux-gnu/libopencv_features2d.so
/usr/lib/x86_64-linux-gnu/libopencv_gpu.so.2.4
/usr/lib/x86_64-linux-gnu/pkgconfig/opencv.pc
/usr/lib/x86_64-linux-gnu/libopencv_videostab.so
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_ml.a
/usr/lib/x86_64-linux-gnu/libopencv_video.so
/usr/lib/x86_64-linux-gnu/libopencv_core.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_gpu.so
/usr/lib/x86_64-linux-gnu/libopencv_legacy.a
/usr/lib/x86_64-linux-gnu/libopencv_videostab.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_photo.a
/usr/lib/x86_64-linux-gnu/libopencv_core.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_ml.so
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so
/usr/lib/x86_64-linux-gnu/libopencv_gpu.a
/usr/lib/x86_64-linux-gnu/libopencv_objdetect.so
/usr/lib/x86_64-linux-gnu/libopencv_imgproc.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_superres.a
/usr/lib/x86_64-linux-gnu/libopencv_flann.a
/usr/lib/x86_64-linux-gnu/libopencv_superres.so
/usr/lib/x86_64-linux-gnu/libopencv_highgui.a
/usr/lib/x86_64-linux-gnu/libopencv_features2d.a
/usr/lib/x86_64-linux-gnu/libopencv_flann.so
/usr/lib/x86_64-linux-gnu/libopencv_stitching.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_ocl.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_photo.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_ml.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_imgproc.so
/usr/lib/x86_64-linux-gnu/libopencv_calib3d.so
/usr/lib/x86_64-linux-gnu/libopencv_contrib.so
/usr/lib/x86_64-linux-gnu/libopencv_flann.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_ts.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_photo.so
/usr/lib/x86_64-linux-gnu/libopencv_legacy.so
/usr/lib/x86_64-linux-gnu/libopencv_contrib.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_objdetect.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_contrib.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_ts.so
/usr/lib/x86_64-linux-gnu/libopencv_imgproc.a
/usr/lib/x86_64-linux-gnu/libopencv_ts.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_stitching.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_calib3d.a
/usr/lib/x86_64-linux-gnu/libopencv_ocl.so.2.4
/usr/lib/x86_64-linux-gnu/libopencv_core.a
/usr/lib/x86_64-linux-gnu/libopencv_flann.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_video.a
/usr/lib/x86_64-linux-gnu/libopencv_legacy.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_videostab.a
/usr/lib/x86_64-linux-gnu/libopencv_calib3d.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_ts.a
/usr/lib/x86_64-linux-gnu/libopencv_objdetect.a
/usr/lib/x86_64-linux-gnu/libopencv_superres.so.2.4.8
/usr/lib/x86_64-linux-gnu/libopencv_stitching.a
/usr/lib/x86_64-linux-gnu/libopencv_ocl.so
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如何使用cuda配置opencv或如何卸载它以便我可以使用所需的配置再次安装它？