Software Alternatives, Accelerators & Startups

OpenCV VS Krita

Compare OpenCV VS Krita and see what are their differences

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OpenCV logo OpenCV

OpenCV is the world's biggest computer vision library

Krita logo Krita

Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
  • OpenCV Landing page
    Landing page //
    2023-07-29
  • Krita Landing page
    Landing page //
    2024-05-31

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    While the documentation is extensive, it can sometimes be incomplete or outdated, requiring users to rely on community forums or external sources for solutions.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.

Krita features and specs

  • Free and Open Source
    Krita is completely free to use, and its source code is available to the public, which allows for extensive customization and community-driven improvements.
  • Powerful Brush Engine
    Krita offers a highly configurable and dynamic brush engine, suitable for various art styles and techniques, from digital painting to textured brushes.
  • Rich Feature Set
    The software includes a comprehensive suite of features such as HDR painting, layer management, color wheels, advanced selections, and many more.
  • Cross-Platform Compatibility
    Krita is available on multiple platforms including Windows, macOS, and Linux, providing flexibility for users across different operating systems.
  • Active Development and Community
    Krita benefits from regular updates and an active community that offers tutorials, forums, and additional resources to help users.

Possible disadvantages of Krita

  • Learning Curve
    Due to its extensive feature set, new users might find Krita overwhelming at first, requiring time and effort to learn and master the tool.
  • Performance Issues
    Some users have reported performance lags and stability issues, especially when working with very large files or complex projects.
  • Limited Vector Tools
    While Krita excels in raster graphics, its vector tools are not as advanced or comprehensive compared to specialized vector graphic software like Adobe Illustrator.
  • Less Industry Standard
    Krita, despite its capabilities, is not as widely adopted in professional industries compared to other software like Photoshop, potentially affecting collaboration and job opportunities.
  • Hardware Dependency
    Optimal performance in Krita can be highly dependent on the user's hardware configuration, necessitating more powerful machines for high-end work.

OpenCV videos

AI Courses by OpenCV.org

More videos:

  • Review - Practical Python and OpenCV

Krita videos

LET'S TRY: Krita!! (free art program)

More videos:

  • Review - Krita - FREE Art Program Review

Category Popularity

0-100% (relative to OpenCV and Krita)
Data Science And Machine Learning
Digital Drawing And Painting
Data Science Tools
100 100%
0% 0
Graphic Design Software
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 Krita

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.

Krita Reviews

Best Adobe Photoshop alternatives of 2024
Krita is open-source and free alternative to Adobe Photoshop, backed by a huge community of developers and talented artists who share artwork and methods. If you’re looking for an active user base that’s invested in discussing and sharing art, Krita is a great Photoshop alternative for drawing.
10 BEST Procreate Alternatives For Android For 2023
Krita offers a natural sketching experience digitally. You get textures along with default brushes that aid you in creating various art types. You can customize the brushes as well. The app also has an integrated reference panel and color wheel.
7 BEST Procreate Alternatives for Android (2023)
Krita’s provides a Gradient tool to help you create stunning artwork. It offers many assets, such as perspective halftone filters, etc., to help you draw efficiently. Krita also has comic textures and other templates. The blending works well, and it gives a lot of creative options.
Source: www.guru99.com
15 Best Procreate Alternatives For Android 2023
Krita is a fun app with many innovative and common features, including brush engines for painting and sketching, stabilizers for freehand inking, a distraction-free canvas, and assistants for creating complex scenes.
Our 6 Favorite Free Photoshop Alternatives (2022 Update)
Krita is a free and open-source painting program, originally developed by a team of rag-tag students and later expanded to become a full-scale professional drawing program that rivals, and in my opinion, surpasses Photoshop in its drawing capabilities.

Social recommendations and mentions

Based on our record, Krita should be more popular than OpenCV. It has been mentiond 300 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 / 10 days ago
  • Top Programming Languages for AI Development in 2025
    Ideal For: Computer vision, NLP, deep learning, and machine learning. - Source: dev.to / 23 days 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 / 5 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 / 6 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 / 8 months ago
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Krita mentions (300)

  • Ask HN: Which "open-source alternatives" have succeeded?
    Fairly well known on HN by now but Krita is also excellent and simple image editor and painting app like Photoshop was 20 years ago https://krita.org/en/. - Source: Hacker News / 11 months ago
  • Cancel Adobe if you are a creative under NDA with your clients
    Well, there is Serif's suite: https://affinity.serif.com/en-us/designer/ (There's also a Photo and page layout app) or the open-source stuff: - https://krita.org/en/ - https://inkscape.org/ - https://www.scribus.net/. - Source: Hacker News / 12 months ago
  • Cancel Adobe if you are a creative under NDA with your clients
    These are all valid alternatives with real world use, but none of them are Photoshop, and that's kinda the problem we face. Krita - https://krita.org/en/. - Source: Hacker News / 12 months ago
  • Photoshop ToS grants Adobe access to user projects for 'content moderation'
    I migrated away from Adobe after Photoshop CS6 which I believe was the last release before they switched over to a subscription only pricing model. If you're looking for a Photoshop alternative to break away from the incredibly user hostile relationship with Adobe I can heartily recommend either Krita (open source) or Pixelmator (Mac only). Pixelmator Pro is my daily driver for image related work and is incredibly... - Source: Hacker News / 12 months ago
  • Paint.net
    Check out Krita[0]. It's what I used after leaving Windows - a little different, maybe 25% more complicated, but has everything you need. If you just want a MS Paint replacement, KolourPaint[1] is the way to go [0] https://krita.org/en/. - Source: Hacker News / about 1 year ago
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What are some alternatives?

When comparing OpenCV and Krita, 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.

Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.

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

GIMP - GIMP is a multiplatform photo manipulation tool.

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

MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.