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OpenCV VS Dark Reader

Compare OpenCV VS Dark Reader and see what are their differences

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OpenCV logo OpenCV

OpenCV is the world's biggest computer vision library

Dark Reader logo Dark Reader

Reduce eye strain in your browser with this extension that provides a dark theme for browsing.
  • OpenCV Landing page
    Landing page //
    2023-07-29
  • Dark Reader Landing page
    Landing page //
    2021-12-27

OpenCV features and specs

  • Comprehensive Library
    OpenCV offers a wide range of tools for various aspects of computer vision, including image processing, machine learning, and video analysis.
  • Cross-Platform Compatibility
    OpenCV is designed to run on multiple platforms, including Windows, Linux, macOS, Android, and iOS, which makes it versatile for development across different environments.
  • Open Source
    Being open-source, OpenCV is freely available for use and allows developers to inspect, modify, and enhance the code according to their needs.
  • Large Community Support
    A large community of developers and researchers actively contributes to OpenCV, providing extensive support, tutorials, forums, and continuously updated documentation.
  • Real-Time Performance
    OpenCV is highly optimized for real-time applications, making it suitable for performance-critical tasks in various industries such as robotics and interactive installations.
  • Extensive Integration
    OpenCV can easily be integrated with other libraries and frameworks such as TensorFlow, PyTorch, and OpenCL, enhancing its capabilities in deep learning and GPU acceleration.
  • Rich Collection of examples
    OpenCV provides a large number of example codes and sample applications, which can significantly reduce the learning curve for beginners.

Possible disadvantages of OpenCV

  • Steep Learning Curve
    Due to the vast array of functionalities and the complexity of some of its advanced features, beginners may find it challenging to learn and use effectively.
  • Documentation Gaps
    While the documentation is extensive, it can sometimes be incomplete or outdated, requiring users to rely on community forums or external sources for solutions.
  • Resource Intensive
    Some functions and algorithms in OpenCV can be quite resource-intensive, requiring significant processing power and memory, which can be a limitation for low-end devices.
  • Limited High-Level Abstractions
    OpenCV provides a wealth of low-level functions, but it may lack higher-level abstractions and frameworks, necessitating more hands-on coding and algorithm development.
  • Dependency Management
    Setting up and managing dependencies can be cumbersome, especially when integrating OpenCV with other libraries or on certain operating systems.
  • Backward Compatibility Issues
    With frequent updates and new versions, backward compatibility can sometimes be problematic, potentially breaking existing code when updating.

Dark Reader features and specs

  • Eye Strain Reduction
    Dark Reader converts bright websites to dark mode, which reduces eye strain and improves visual comfort, especially in low-light environments.
  • Customizable Settings
    The extension offers various customization options like brightness, contrast, and sepia filters, allowing users to adjust the appearance to their liking.
  • Improved Battery Life
    Using dark themes on OLED screens can help save battery life because pixels consume less power when displaying black.
  • Open Source
    Being an open-source project, Dark Reader allows for community contributions and transparency, ensuring better security and continuous improvements.
  • Cross-Browser Compatibility
    Dark Reader is available for multiple browser platforms such as Chrome, Firefox, Safari, and Edge, ensuring a consistent experience across different devices.

Possible disadvantages of Dark Reader

  • Performance Impact
    The extension can sometimes slow down browser performance, particularly on resource-intensive websites or less powerful devices.
  • Inconsistent Behavior
    Not all websites are fully compatible with Dark Reader, leading to occasional rendering issues or incomplete dark mode implementations.
  • Learning Curve
    New users might find the range of settings and customization options overwhelming and might need some time to adjust the extension to suit their needs.
  • Limited Support for Dynamic Content
    Websites with dynamic content or frequent updates may not immediately reflect changes in dark mode, requiring manual adjustments or refreshes.
  • Privacy Concerns
    As with any browser extension, there are potential privacy concerns if the extension collects browsing data, though Dark Reader's open-source nature mitigates this risk to some extent.

Analysis of OpenCV

Overall verdict

  • Yes, OpenCV is considered a good and reliable choice for computer vision tasks, particularly due to its extensive functionality, active community, and flexibility.

Why this product is good

  • OpenCV (Open Source Computer Vision Library) is widely regarded as a robust and versatile library for computer vision applications. It offers a comprehensive collection of functions and algorithms for image processing, video capture, machine learning, and more. Its open-source nature encourages community involvement, making it highly adaptable and continuously improving. OpenCV's cross-platform support and ease of integration with other libraries and languages further enhance its appeal.

Recommended for

  • Developers and researchers working on computer vision projects
  • People looking to implement real-time video analysis
  • Individuals exploring machine learning applications related to image and video processing
  • Anyone interested in experimenting with or learning computer vision concepts

Analysis of Dark Reader

Overall verdict

  • Dark Reader is generally well-reviewed and considered good by users who prefer browsing with a dark theme.

Why this product is good

  • Dark Reader is a popular browser extension designed to provide a dark mode for websites that do not natively support it. It helps reduce eye strain during prolonged browsing sessions, especially in low-light conditions, by inverting bright colors and creating a consistent dark theme across websites.

Recommended for

  • Users who experience eye strain from bright screens
  • Individuals who frequently browse in low-light environments
  • People who prefer a consistent dark theme across different websites
  • Users looking for customizable dark mode options for web pages

OpenCV videos

AI Courses by OpenCV.org

More videos:

  • Review - Practical Python and OpenCV

Dark Reader videos

Dark Mode for Google Chrome — Dark Reader

Category Popularity

0-100% (relative to OpenCV and Dark Reader)
Data Science And Machine Learning
Browser Extension
0 0%
100% 100
Data Science Tools
100 100%
0% 0
Dark Mode
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare OpenCV and Dark Reader

OpenCV Reviews

7 Best Computer Vision Development Libraries in 2024
From the widespread adoption of OpenCV with its extensive algorithmic support to TensorFlow's role in machine learning-driven applications, these libraries play a vital role in real-world applications such as object detection, facial recognition, and image segmentation.
10 Python Libraries for Computer Vision
OpenCV is the go-to library for computer vision tasks. It boasts a vast collection of algorithms and functions that facilitate tasks such as image and video processing, feature extraction, object detection, and more. Its simple interface, extensive documentation, and compatibility with various platforms make it a preferred choice for both beginners and experts in the field.
Source: clouddevs.com
Top 8 Alternatives to OpenCV for Computer Vision and Image Processing
OpenCV is an open-source computer vision and machine learning software library that was first released in 2000. It was initially developed by Intel, and now it is maintained by the OpenCV Foundation. OpenCV provides a set of tools and software development kits (SDKs) that help developers create computer vision applications. It is written in C++, but it supports several...
Source: www.uubyte.com
Top 8 Image-Processing Python Libraries Used in Machine Learning
These are some of the most basic operations that can be performed with the OpenCV on an image. Apart from this, OpenCV can perform operations such as Image Segmentation, Face Detection, Object Detection, 3-D reconstruction, feature extraction as well.
Source: neptune.ai
5 Ultimate Python Libraries for Image Processing
Pillow is an image processing library for Python derived from the PIL or the Python Imaging Library. Although it is not as powerful and fast as openCV it can be used for simple image manipulation works like cropping, resizing, rotating and greyscaling the image. Another benefit is that it can be used without NumPy and Matplotlib.

Dark Reader Reviews

Top 10 Productivity Apps for MacOS 2025
I live for dark mode. Anyone who’s worked with me knows how much I reject working in light mode. Seriously, I don’t know how you light-moders stay relaxed with so much brightness. That said, when it comes to browsing the web, it’s sometimes hard to avoid the bright white background of a blog or article. With one click, Dark Reader strips it all away and returns me to the...
Source: dev.to
7 Best Dark Mode Extensions For Chrome
Using an on-demand dark styles theme generator, this eye-care extensions for google chrome turns on night mode for web pages. Bright color are turned into high contrast, easy-to-read hues at night thanks to Dark Reader.
Source: thedroidguy.com
The 10 best dark mode extensions for Google Chrome in 2022
Dark Reader also provides you with other controls that let you tweak your display however you want. They allow you to change any website’s brightness, contrast, font, and other display elements. You can also store the settings for a particular URL so that you do not have to make these adjustments every time. The most notable feature of Dark Reader is its toggle switch that...
Source: chromeready.com

Social recommendations and mentions

Based on our record, Dark Reader should be more popular than OpenCV. It has been mentiond 191 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

OpenCV mentions (60)

  • Grasping Computer Vision Fundamentals Using Python
    To aspiring innovators: Dive into open-source frameworks like OpenCV or PyTorch, experiment with custom object detection models, or contribute to projects tackling bias mitigation in training datasets. Computer vision isn’t just a tool, it’s a bridge between the physical and digital worlds, inviting collaborative solutions to global challenges. The next frontier? Systems that don’t just interpret visuals, but... - Source: dev.to / about 1 month ago
  • Top Programming Languages for AI Development in 2025
    Ideal For: Computer vision, NLP, deep learning, and machine learning. - Source: dev.to / about 2 months ago
  • Why 2024 Was the Best Year for Visual AI (So Far)
    Almost everyone has heard of libraries like OpenCV, Pytorch, and Torchvision. But there have been incredible leaps and bounds in other libraries to help support new tasks that have helped push research even further. It would be impossible to thank each and every project and the thousands of contributors who have helped make the entire community better. MedSAM2 has been helping bring the awesomeness of SAM2 to the... - Source: dev.to / 6 months ago
  • 20 Open Source Tools I Recommend to Build, Share, and Run AI Projects
    OpenCV is an open-source computer vision and machine learning software library that allows users to perform various ML tasks, from processing images and videos to identifying objects, faces, or handwriting. Besides object detection, this platform can also be used for complex computer vision tasks like Geometry-based monocular or stereo computer vision. - Source: dev.to / 7 months ago
  • F1 FollowLine + HSV filter + PID Controller
    This library is used for image and video processing, offering functions for tasks like object detection, filtering, and transformations in computer vision. - Source: dev.to / 9 months ago
View more

Dark Reader mentions (191)

  • Claim for a Missing Tooth
    I suppose they’re using https://darkreader.org/ or something like that! If you implement dark mode yourself, you can add `` to prevent Dark Reader from triggering. - Source: Hacker News / 3 months ago
  • Please Don't Force Dark Mode on Users
    Instead of writing this shitty article, just do like those of us who can't take light mode, and install Dark Reader (that also does light mode). https://darkreader.org/. - Source: Hacker News / 5 months ago
  • Ask HN: Will HN ever have a dark mode?
    I prefer sites not to implement a custom dark mode and instead to make sure their styles invert well, less work for devs, more consistency for me. https://darkreader.org/ https://www.howtogeek.com/446198/how-to-force-dark-mode-on-every-website-in-google-chrome/. - Source: Hacker News / 5 months ago
  • Ask HN: Why did you decide to make the background a bright white color?
    DarkReader will save your eyes, I'm not fond of extensions, but this one is worth it: https://darkreader.org/. - Source: Hacker News / 6 months ago
  • Control iPhone with the movement of your eyes Support (SG)
    DarkReader works pretty well for my needs. It has an iOS Safari Extension. [1] https://darkreader.org/. - Source: Hacker News / 7 months ago
View more

What are some alternatives?

When comparing OpenCV and Dark Reader, you can also consider the following products

Scikit-learn - scikit-learn (formerly scikits.learn) is an open source machine learning library for the Python programming language.

Stylebot - Change the appearance of websites instantly. Preview and install styles created by other users on stylebot.me

NumPy - NumPy is the fundamental package for scientific computing with Python

Night Eye - Night Eye is a browser extension that enables dark mode on any website you visit. It does not ruin your browsing experience by simply inverting images.

Pandas - Pandas is an open source library providing high-performance, easy-to-use data structures and data analysis tools for the Python.

Stylus - User Styles Manager - Stylus is a userstyles editor and manager based on the source code of Stylish version 1.5.2.