Conda 安装 OpenCV

超、凢脫俗 2023-10-10 17:32 48阅读 0赞

### 1、conda 切换虚拟环境 ###

activate 虚拟环境名称

温馨提示：查询虚拟环境列表

conda env list

![743d20aad84543ee9dc083954089afbf.png][]

### 2、conda 查看安装源 ###

conda config --show-sources

我本地安装源为: [Index of /anaconda/pkgs/free/ | 清华大学开源软件镜像站 | Tsinghua Open Source Mirror][Index of _anaconda_pkgs_free_ _ _ _ Tsinghua Open Source Mirror]

修改conda 默认安装源，请执行如下指令:

# 安装清华安装源
    conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
    
    # 移除conda 默认安装源
    conda config --remove channels defaults

### 3、conda 查询opencv 版本 ###

conda search opencv

执行效果:

![cfbb5cedc8454b36a43dd22f24790b47.png][]

### 4、安装opencv ###

温馨提示：安装opencv 注意python 版本最低要求和支持python 最高版本。

**opencv3 安装：**

(python310) C:\Windows\System32>conda install opencv=3.4.2
    Collecting package metadata (current_repodata.json): done
    Solving environment: failed with initial frozen solve. Retrying with flexible solve.
    Collecting package metadata (repodata.json): done
    Solving environment: failed with initial frozen solve. Retrying with flexible solve.
    Solving environment: -
    Found conflicts! Looking for incompatible packages.
    This can take several minutes.  Press CTRL-C to abort.
    failed
    
    UnsatisfiableError: The following specifications were found
    to be incompatible with the existing python installation in your environment:
    
    Specifications:
    
      - opencv=3.4.2 -> python[version='>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
    
    Your python: python=3.10
    
    If python is on the left-most side of the chain, that's the version you've asked for.
    When python appears to the right, that indicates that the thing on the left is somehow
    not available for the python version you are constrained to. Note that conda will not
    change your python version to a different minor version unless you explicitly specify
    that.

结论：安装OpenCV 3.4.2 不在 Python支持范围内。

**opencv4 安装：**

(python310) C:\Windows\System32>conda install opencv=4.5.5
    Collecting package metadata (current_repodata.json): done
    Solving environment: failed with initial frozen solve. Retrying with flexible solve.
    Collecting package metadata (repodata.json): done
    Solving environment: |
    The environment is inconsistent, please check the package plan carefully
    The following packages are causing the inconsistency:
    
      - defaults/win-64::matplotlib==3.7.1=py310haa95532_1
    done
    
    ## Package Plan ##
    
      environment location: D:\anaconda3\envs\python310
    
      added / updated specs:
        - opencv=4.5.5
    
    
    The following packages will be downloaded:
    
        package                    |            build
        ---------------------------|-----------------
        eigen-3.3.7                |       h59b6b97_1         831 KB  defaults
        hdf5-1.8.15.1              |                2         1.4 MB  https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
        libprotobuf-3.20.3         |       h23ce68f_0         2.2 MB  defaults
        numpy-1.21.5               |  py310h6d2d95c_3          25 KB  defaults
        numpy-base-1.21.5          |  py310h206c741_3         4.4 MB  defaults
        opencv-4.5.5               |  py310he826a15_4        24.5 MB  defaults
        ------------------------------------------------------------
                                               Total:        33.4 MB
    
    The following NEW packages will be INSTALLED:
    
      eigen              pkgs/main/win-64::eigen-3.3.7-h59b6b97_1
      hdf5               anaconda/pkgs/free/win-64::hdf5-1.8.15.1-2
      libprotobuf        pkgs/main/win-64::libprotobuf-3.20.3-h23ce68f_0
      opencv             pkgs/main/win-64::opencv-4.5.5-py310he826a15_4
      pyqt               pkgs/main/win-64::pyqt-5.15.7-py310hd77b12b_0
    
    The following packages will be DOWNGRADED:
    
      numpy                              1.23.5-py310h60c9a35_0 --> 1.21.5-py310h6d2d95c_3
      numpy-base                         1.23.5-py310h04254f7_0 --> 1.21.5-py310h206c741_3
    
    
    Proceed ([y]/n)? y
    
    
    Downloading and Extracting Packages
    
    Preparing transaction: done
    Verifying transaction: done
    Executing transaction: done

成功安装。

### 5、验证opencv 是否安装成功 ###

(python310) C:\Windows\System32>python
    Python 3.10.10 | packaged by Anaconda, Inc. | (main, Mar 21 2023, 18:39:17) [MSC v.1916 64 bit (AMD64)] on win32
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import cv2
    >>> print(cv2.__version__)
    4.5.5
    >>>

opencv 环境初步搞定。

[743d20aad84543ee9dc083954089afbf.png]: https://img-blog.csdnimg.cn/743d20aad84543ee9dc083954089afbf.png
[Index of _anaconda_pkgs_free_ _ _ _ Tsinghua Open Source Mirror]: https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
[cfbb5cedc8454b36a43dd22f24790b47.png]: https://img-blog.csdnimg.cn/cfbb5cedc8454b36a43dd22f24790b47.png