IPPICV: Download: ippicv_2019_lnx_intel64_general_20180723.tgz手动安装解决

1.去opencv/3rdparty/ippicv并打开ippcv.cmake文件
2.搜索IPPICV_COMMIT得到（不同用户下面可能不同）

set(IPPICV_COMMIT "32e315a5b106a7b89dbed51c28f8120a48b368b4")

3…搜索OPENCV_IPPICV_URL得到（不同用户下面可能不同）

https://raw.githubusercontent.com/opencv/opencv_3rdparty/${IPPICV_COMMIT}/ippicv/

4.搜索OPENCV_ICV_NAME得到（不同用户可能不同），你根据终端提示确定使用哪个

set(OPENCV_ICV_NAME "ippicv_2019_mac_intel64_general_20180723.tgz")
set(OPENCV_ICV_NAME "ippicv_2019_mac_ia32_general_20180723.tgz")
set(OPENCV_ICV_NAME "ippicv_2019_lnx_intel64_general_20180723.tgz")
set(OPENCV_ICV_NAME "ippicv_2019_lnx_ia32_general_20180723.tgz")
set(OPENCV_ICV_NAME "ippicv_2019_win_intel64_20180723_general.zip")
set(OPENCV_ICV_NAME "ippicv_2019_win_ia32_20180723_general.zip")

将他们拼接起来就是下载地址，但是由于墙的原因，我这儿已经下载好了。

https://raw.githubusercontent.com/opencv/opencv_3rdparty32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_mac_intel64_general_20180723.tgz

5.更改ippcv.cmake第47行为：

"file:~/Downloads/" #（仅供参考，根据自己的路径填写）

继续安装，可参照https://www.jianshu.com/p/f646448da265