我正在尝试使用anaconda网站上的conda install -c menpo opencv3使用Conda安装适用于Python 3.6的OpenCV3。运行此命令时，终端将输出以下内容：
The following packages will be downloaded:
package | build
---------------------------|-----------------
ruamel_yaml-0.15.46 | py35h1de35cc_0 223 KB
pytables-3.4.4 | py35hca30cd5_0 1.4 MB
------------------------------------------------------------
Total: 1.6 MB
The following NEW packages will be INSTALLED:
appdirs: 1.4.3-py35h28b3542_0
atomicwrites: 1.2.1-py35_0
automat: 0.7.0-py35_0
constantly: 15.1.0-py35h28b3542_0
defusedxml: 0.5.0-py35_1
future: 0.16.0-py35_2
hyperlink: 18.0.0-py35_0
incremental: 17.5.0-py35_0
keyring: 13.2.1-py35_0
opencv3: 3.1.0-py35_0 menpo
prometheus_client: 0.3.1-py35h28b3542_0
pyasn1: 0.4.4-py35h28b3542_0
pyasn1-modules: 0.2.2-py35_0
service_identity: 17.0.0-py35h28b3542_0
spyder-kernels: 0.2.6-py35_0
tbb: 4.3_20141023-0 menpo
tqdm: 4.26.0-py35h28b3542_0
twisted: 18.7.0-py35h1de35cc_1
typed-ast: 1.1.0-py35h6952a12_0
zope: 1.0-py35_1
zope.interface: 4.5.0-py35h1de35cc_0
The following packages will be REMOVED:
anaconda: 5.2.0-py36_3
它还打印出了许多其他将要更新的python软件包，例如jupyter_console，jinja2，colorama和许多我从未听说过的其他软件包。我是新手，是因为opencv3依赖于所有这些软件包吗？我只是不想安装很多我不需要的东西。谢谢！