{"id":1927,"date":"2023-07-23T20:41:02","date_gmt":"2024-09-05T13:09:25","guid":{"rendered":""},"modified":"2025-02-02T00:46:17","modified_gmt":"2025-02-01T23:46:17","slug":"how-to-install-open-source-computer-vision-library-opencv-on-centos-8","status":"publish","type":"post","link":"https:\/\/netcloud24.com\/knowledgebase\/how-to-install-open-source-computer-vision-library-opencv-on-centos-8\/","title":{"rendered":"Linux VPS &#038; VPS Windows Setup Guide | NetCloud24 Open Source Computer Vision Library (OpenCV) on CentOS 8"},"content":{"rendered":"<p>\u00a0<\/p>\n<\/p>\n<h1>\u00a0<\/h1>\n<p>OpenCV (Open Source Computer Vision Library) is an open-source computer vision and machine learning software library. It is widely used in various real-time applications like face detection, object identification, and image processing. In this guide, we will walk you through the steps to install OpenCV on CentOS 8. Whether you&#8217;re using a  or another hosting service, OpenCV can help you build powerful image processing applications.<\/p>\n<h2>Prerequisites<\/h2>\n<p>Before starting, ensure you have the following:<\/p>\n<ul>\n<li>A CentOS 8 server, which could be hosted on a <a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\" rel=\"follow\">UK Windows VPS<\/a>, <a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\" rel=\"follow\">Windows VPSVirtual Private Servers<\/a>, or another <a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\" rel=\"follow\">Windows VPS Hosting UK<\/a> solution.<\/li>\n<li>Root or sudo privileges on your server.<\/li>\n<\/ul>\n<h2>Step 1: Update Your System<\/h2>\n<p>As always, start by updating your system to ensure all packages are up to date:<\/p>\n<pre><code>sudo dnf update -y<\/code><\/pre>\n<h2>Step 2: Install Required Dependencies<\/h2>\n<p>OpenCV requires several dependencies to build and function properly. Install the required dependencies using the following command:<\/p>\n<pre><code>sudo dnf install epel-release -y\r\nsudo dnf groupinstall \"Development Tools\" -y\r\nsudo dnf install cmake gcc gcc-c++ git libjpeg-devel libpng-devel libtiff-devel jasper-devel openexr-devel libwebp-devel libdc1394-devel -y<\/code><\/pre>\n<h2>Step 3: Install Python and Python Development Libraries<\/h2>\n<p>If you plan to use OpenCV with Python, you&#8217;ll need to install Python and its development libraries:<\/p>\n<pre><code>sudo dnf install python3 python3-devel -y<\/code><\/pre>\n<h2>Step 4: Download OpenCV Source Code<\/h2>\n<p>Download the OpenCV source code and the extra modules from the official GitHub repository:<\/p>\n<pre><code>cd \/opt\r\nsudo git clone https:\/\/github.com\/opencv\/opencv.git\r\nsudo git clone https:\/\/github.com\/opencv\/opencv_contrib.git<\/code><\/pre>\n<h2>Step 5: Build OpenCV Using CMake<\/h2>\n<p>Now, create a directory for building OpenCV and navigate to it:<\/p>\n<pre><code>cd \/opt\/opencv\r\nmkdir build\r\ncd build<\/code><\/pre>\n<p>Use CMake to configure the build process:<\/p>\n<pre><code>sudo cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=\/usr\/local -D OPENCV_EXTRA_MODULES_PATH=\/opt\/opencv_contrib\/modules -D BUILD_EXAMPLES=ON ..<\/code><\/pre>\n<p>Once the configuration is complete, build OpenCV using the following command:<\/p>\n<pre><code>sudo make -j$(nproc)<\/code><\/pre>\n<p>This process may take some time depending on your server&#8217;s resources.<\/p>\n<h2>Step 6: Install OpenCV<\/h2>\n<p>After the build process is complete, install OpenCV by running:<\/p>\n<pre><code>sudo make install\r\nsudo ldconfig<\/code><\/pre>\n<h2>Step 7: Verify the Installation<\/h2>\n<p>To verify that OpenCV has been successfully installed, you can open the Python interpreter and import the <code>cv2<\/code> module:<\/p>\n<pre><code>python3\r\n&gt;&gt;&gt; import cv2\r\n&gt;&gt;&gt; print(cv2.__version__)<\/code><\/pre>\n<p>You should see the OpenCV version number if the installation was successful.<\/p>\n<h2>Conclusion<\/h2>\n<p>By following these steps, you have successfully installed OpenCV on CentOS 8. OpenCV is now ready to be used for a variety of computer vision tasks. Whether you&#8217;re hosting your server on a , <a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\" rel=\"follow\">Microsoft SQL VPS Windows<\/a>, or another <a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\" rel=\"follow\">Windows VPS<\/a> solution, OpenCV will enhance your ability to work with images and video data in real time.<\/p>\n<footer>\n<p>For more VPS hosting options, visit . They offer a variety of <a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\" rel=\"follow\">Windows VPSVirtual Private Servers<\/a> and <a href=\"https:\/\/ie.netcloud24.com\" target=\"_blank\" rel=\"follow\">Windows VPS Hosting UK<\/a> solutions tailored to your needs.<\/p>\n<\/footer>\n<div class=\"post-author-box\" style=\"border-top:1px solid #ddd;margin-top:20px;padding-top:15px;\">\n<p><strong>Author:<\/strong> \u0141ukasz Bodziony<\/p>\n<p><strong>Website:<\/strong> <a href=\"https:\/\/ca.netcloud24.com\" target=\"_blank\" rel=\"dofollow\">Windows VPS<\/a><\/p>\n<p><em>\u0141ukasz Bodziony is the CEO and founder of <a href=\"https:\/\/netcloud24.com\" target=\"_blank\" rel=\"dofollow\">NETCLOUD24<\/a>, a global VPS hosting brand proudly originating from Poland. With extensive experience in cloud computing, virtualization, and server management, he delivers high-performance <strong>Windows VPS<\/strong> and <strong>Remote Desktop Services (RDS)<\/strong> solutions to clients across Europe, North America, and beyond.<\/em><\/p>\n<p><em>His expertise covers a wide range of technologies, including <strong>Microsoft Azure<\/strong>, <strong>Proxmox VE<\/strong>, <strong>Amazon Web Services (AWS)<\/strong>, and numerous other virtualization and cloud platforms.<\/em><\/p>\n<p><em>Beyond running his hosting business, \u0141ukasz also provides <strong>professional paid server configuration and optimization services<\/strong> for companies and individuals. Outside of work, he is dedicated to caring for his children and building a secure future for them.<\/em><\/p>\n<p><em>If you are interested in working with him or need expert assistance with your hosting, cloud environment, or server setup, feel free to reach out via <a href=\"https:\/\/ca.netcloud24.com\" target=\"_blank\" rel=\"dofollow\">Windows VPS<\/a>.<\/em><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 \u00a0 OpenCV (Open Source Computer Vision Library) is an open-source computer vision and machine learning software library. It is widely used in various real-time applications like face\u2026<\/p>\n","protected":false},"author":1,"featured_media":3421,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[],"tags":[14,12,11,23,20,21,22,17,7,8,6,10,18,19,15,24,16,5,13,9],"class_list":["post-1927","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-cheapvps","tag-cloudvps","tag-hostingvps","tag-rds","tag-rdscal","tag-remotedesktop","tag-remotedesktopvps","tag-servervps","tag-ukvps","tag-virtualserver","tag-vpshosting","tag-vpsserver","tag-vpssolutions","tag-vpswindows","tag-vpswithwindows","tag-windowsrds","tag-windowsserver","tag-windowsvps","tag-windowsvpshosting","tag-windowsvpsuk"],"jetpack_publicize_connections":[],"_links":{"self":[{"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/posts\/1927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/comments?post=1927"}],"version-history":[{"count":0,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/posts\/1927\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/media\/3421"}],"wp:attachment":[{"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/media?parent=1927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/categories?post=1927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/netcloud24.com\/knowledgebase\/wp-json\/wp\/v2\/tags?post=1927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}