Cmake 配置opencv
假如下载解压之后得到的opencv配置文件无法正常使用，你需要自己将开源文件编译一次，这样才更适合你的电脑。
https://opencv.org/opencv-3-4-1.html
https://cmake.org/files/v3.12/cmake-3.12.1.zip
并且，cmake需要与opencv版本号相兼容。
打开cmake.（路径最好不要出现中文）
选择opencv源文件夹。以及生成的文件夹。
生成文件夹的路径随意。
点击Configure 选择编译器版本
点击finish。结束之后，点击generate。生成项目。最后在选择的生成路径下找到opencv.sin(针对vs2017).打开项目。
点击重新生成解决方案。
生成结束之后。
找到
最终
-
VC++目录-->包含目录，添加：
D:\opencv3\opencv\mybuild\install\include -
VC++目录-->库目录，添加：
D:\opencv3\opencv\mybuild\install\x86\vc12\lib
D:\opencv3\opencv\mybuild\install\x86\vc12\staticlib -
链接器-->输入-->附加依赖项，添加：opencv_aruco341d.lib
opencv_bgsegm341d.lib
opencv_bioinspired341d.lib
opencv_calib3d341d.lib
opencv_ccalib341d.lib
opencv_core341d.lib
opencv_datasets341d.lib
opencv_dnn_objdetect341d.lib
opencv_dnn341d.lib
opencv_dpm341d.lib
opencv_face341d.lib
opencv_features2d341d.lib
opencv_flann341d.lib
opencv_fuzzy341d.lib
opencv_hfs341d.lib
opencv_highgui341d.lib
opencv_img_hash341d.lib
opencv_imgcodecs341d.lib
opencv_imgproc341d.lib
opencv_line_descriptor341d.lib
opencv_ml341d.lib
opencv_objdetect341d.lib
opencv_optflow341d.lib
opencv_phase_unwrapping341d.lib
opencv_photo341d.lib
opencv_plot341d.lib
opencv_reg341d.lib
opencv_rgbd341d.lib
opencv_saliency341d.lib
opencv_shape341d.lib
opencv_stereo341d.lib
opencv_stitching341d.lib
opencv_structured_light341d.lib
opencv_superres341d.lib
opencv_surface_matching341d.lib
opencv_text341d.lib
opencv_tracking341d.lib
opencv_video341d.lib
opencv_videoio341d.lib
opencv_videostab341d.lib
opencv_world341.lib
opencv_world341d.lib
opencv_xfeatures2d341d.lib
opencv_ximgproc341d.lib
opencv_xobjdetect341d.lib
opencv_xphoto341d.lib