diff --git a/lib/opencv-4.9.0.sh b/lib/opencv-4.9.0.sh
index 60a66ec..69ecec7 100644
--- a/lib/opencv-4.9.0.sh
+++ b/lib/opencv-4.9.0.sh
@@ -1,117 +1,24 @@
 #!/bin/bash
 
 # Build and install OpenCV from source on CentOS 7 for graph-cut-ransac and MAGSAC++
-
+# FIXME 这里安装会有问题，完了找linux试试 估计是解压问题
 # 切换到国内
 sed -i -e "s/mirrorlist=/#mirrorlist=/g" /etc/yum.repos.d/CentOS-Linux-*.repo
 sed -i -e "s|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g" /etc/yum.repos.d/CentOS-Linux-*.repo
 
 # install dependencies for opencv and magsac
 yum update -y
-yum install -y cmake3 eigen3-devel gflags-devel git
+yum install -y cmake g++ wget unzip
 yum clean all && rm -rf /var/cache/yum  # clean cache
 
-# Download opencv
-git clone --depth 1 --branch 4.x https://github.com/opencv/opencv.git
-cd opencv
-mkdir build && cd build
-
-# Compile and install OpenCV with contrib modules
-cmake3 -D CMAKE_BUILD_TYPE=RELEASE \
-	-D CMAKE_INSTALL_PREFIX=/usr/local \
-	-D INSTALL_C_EXAMPLES=OFF \
-	-D INSTALL_PYTHON_EXAMPLES=OFF \
-    -D PYTHON3_EXECUTABLE=/usr/bin/python3.6 \
-	-D PYTHON_DEFAULT_EXECUTABLE=/usr/bin/python3.6 \
-	-D PYTHON3_VERSION_STRING="3.6.8" \
-	-D BUILD_opencv_cudacodec=OFF \
-    -D WITH_1394:BOOL=OFF \
-    -D WITH_ARAVIS:BOOL=OFF \
-    -D WITH_CLP:BOOL=OFF \
-    -D WITH_CUDA:BOOL=OFF \
-    -D WITH_EIGEN:BOOL=ON \
-    -D WITH_FFMPEG:BOOL=OFF \
-    -D WITH_GDAL:BOOL=OFF \
-    -D WITH_GDCM:BOOL=OFF \
-    -D WITH_GIGEAPI:BOOL=OFF \
-    -D WITH_GPHOTO2:BOOL=OFF \
-    -D WITH_GSTREAMER:BOOL=OFF \
-    -D WITH_GSTREAMER_0_10:BOOL=OFF \
-    -D WITH_GTK:BOOL=OFF \
-    -D WITH_GTK_2_X:BOOL=OFF \
-    -D WITH_HALIDE:BOOL=OFF \
-    -D WITH_IMGCODEC_HDR:BOOL=OFF \
-    -D WITH_IMGCODEC_PXM:BOOL=OFF \
-    -D WITH_IMGCODEC_SUNRASTER:BOOL=OFF \
-    -D WITH_INF_ENGINE:BOOL=OFF \
-    -D WITH_IPP:BOOL=OFF \
-    -D WITH_ITT:BOOL=OFF \
-    -D WITH_JASPER:BOOL=OFF \
-    -D WITH_JPEG:BOOL=OFF \
-    -D WITH_LAPACK:BOOL=ON \
-    -D WITH_LIBV4L:BOOL=OFF \
-    -D WITH_MFX:BOOL=OFF \
-    -D WITH_OPENCL:BOOL=OFF \
-    -D WITH_OPENCLAMDBLAS:BOOL=OFF \
-    -D WITH_OPENCLAMDFFT:BOOL=OFF \
-    -D WITH_OPENCL_SVM:BOOL=OFF \
-    -D WITH_OPENEXR:BOOL=OFF \
-    -D WITH_OPENGL:BOOL=OFF \
-    -D WITH_OPENMP:BOOL=OFF \
-    -D WITH_OPENNI:BOOL=OFF \
-    -D WITH_OPENNI2:BOOL=OFF \
-    -D WITH_OPENVX:BOOL=OFF \
-    -D WITH_PNG:BOOL=OFF \
-    -D WITH_PROTOBUF:BOOL=OFF \
-    -D WITH_PTHREADS_PF:BOOL=ON \
-    -D WITH_PVAPI:BOOL=OFF \
-    -D WITH_QT:BOOL=OFF \
-    -D WITH_QUIRC:BOOL=OFF \
-    -D WITH_TBB:BOOL=OFF \
-    -D WITH_TIFF:BOOL=OFF \
-    -D WITH_UNICAP:BOOL=OFF \
-    -D WITH_V4L:BOOL=OFF \
-    -D WITH_VA:BOOL=OFF \
-    -D WITH_VA_INTEL:BOOL=OFF \
-    -D WITH_VTK:BOOL=OFF \
-    -D WITH_WEBP:BOOL=OFF \
-    -D WITH_XIMEA:BOOL=OFF \
-    -D WITH_XINE:BOOL=OFF \
-	-D BUILD_EXAMPLES=OFF \
-    -D BUILD_TESTS:BOOL=OFF \
-    -D BUILD_TIFF:BOOL=OFF \
-    -D BUILD_USE_SYMLINKS:BOOL=OFF \
-    -D BUILD_WEBP:BOOL=OFF \
-    -D BUILD_WITH_DEBUG_INFO:BOOL=OFF \
-    -D BUILD_WITH_DYNAMIC_IPP:BOOL=OFF \
-    -D BUILD_ZLIB:BOOL=OFF \
-    -D BUILD_opencv_apps:BOOL=OFF \
-    -D BUILD_opencv_dnn:BOOL=OFF \
-    -D BUILD_opencv_highgui:BOOL=OFF \
-    -D BUILD_opencv_imgcodecs:BOOL=OFF \
-    -D BUILD_opencv_java_bindings_generator:BOOL=OFF \
-    -D BUILD_opencv_js:BOOL=OFF \
-    -D BUILD_opencv_ml:BOOL=OFF \
-    -D BUILD_opencv_objdetect:BOOL=OFF \
-    -D BUILD_opencv_photo:BOOL=OFF \
-    -D BUILD_opencv_python_bindings_generator:BOOL=OFF \
-    -D BUILD_opencv_shape:BOOL=OFF \
-    -D BUILD_opencv_stitching:BOOL=OFF \
-    -D BUILD_opencv_superres:BOOL=OFF \
-    -D BUILD_opencv_ts:BOOL=OFF \
-    -D BUILD_opencv_video:BOOL=OFF \
-    -D BUILD_opencv_videoio:BOOL=OFF \
-    -D BUILD_opencv_videostab:BOOL=OFF \
-    -D BUILD_opencv_world:BOOL=OFF \
-    -D BUILD_opencv_calib3d:BOOL=ON \
-    -D BUILD_opencv_features2d:BOOL=ON \
-    -D BUILD_opencv_imgproc:BOOL=ON \
-    -D BUILD_opencv_core:BOOL=ON \
-    -D BUILD_opencv_flann:BOOL=ON ..
-
-# compile and install OpenCV
-make -j && make install
-
-# Remove OpenCV source
-cd ../..
-rm -rf opencv
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+# install opencv_contrib
+wget -O opencv.zip https://github.com/opencv/opencv/archive/4.x.zip
+wget -O opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/4.x.zip
+unzip opencv.zip
+unzip opencv_contrib.zip
+# Create build directory and switch into it
+mkdir -p build && cd build
+# Configure
+cmake -DOPENCV_EXTRA_MODULES_PATH=../opencv_contrib-4.x/modules ../opencv-4.x
+# Build
+cmake --build .
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