10

8

6

4

2


9.9

9.7
OpenCV

9.8

9.4
tesseract-ocr

7.4

9.8
VTK

7.1

9.2
libvips

6.9

9.1
OpenImageIO

6.5
1.6
OpenEXR

19 Image Processing libraries and projects

  • OpenCV

    9.9 9.7 L1 C++
    Open source computer vision. [BSD]

  • tesseract-ocr

    9.8 9.4 L1 C++
    An OCR engine. [Apache2]

  • VTK

    7.4 9.8 L1 C++
    Open-source, freely available software system for 3D computer graphics, image processing and visualization. [BSD]

  • libvips

    7.1 9.2 L3 C
    A fast image processing library with low memory needs. [LGPL] website

  • OpenImageIO

    6.9 9.1 L1 C++
    Powerful image and texture wrangling library with support for a wide number of common lossy and RAW formats. [Modified BSD]

  • OpenEXR

    6.5 1.6 L1 C++
    Cross-platform library for high dynamic range imaging. [Modified BSDF]

  • Magick++

    5.9 2.8 Go
    ImageMagick program interfaces for C++. [Apache2]

  • ITK

    5.8 9.5 L2 C++
    An open-source, cross-platform system for image analysis. [Apache2 from ITK 4.0]

  • CImg

    5.5 9.1 C++
    A small, open source, C++ toolkit for image processing. [Own LGPL or GPL]

  • VIGRA

    5.3 6.1 L1 C++
    A generic C++ computer vision library for image analysis. [MIT X11]

  • Video++

    5.2 7.0 L2 C++
    A C++14 high performance video and image processing library. [MIT]

  • GD

    5.1 6.7 L2 C
    GD Graphics Library, famously used in PHP for image loading/manipulation & thumbnail generation. [custom permissive license, requires mention in user docs] website

  • hiptext

    4.4 1.1 L3 C++
    Turn images into text better than caca/aalib

  • GDCM

    3.6 9.1 L1 C++
    Grassroots DICOM library.

  • SVG++

    3.5 3.7 L3 C++
    The most advanced SVG reading library for C++

  • CxImage

    3.2 0.0 L1 C++
    An image processing and conversion library to load, save, display, transform BMP, JPEG, GIF, PNG, TIFF, MNG, ICO, PCX, TGA, WMF, WBMP, JBG, J2K images. [zlib]

  • FreeImage

    2.2 2.0 L2 C
    An open source library that supports popular graphics image formats and others as needed by today's multimedia applications. [GPL2 or GPL3]

  • Boost.GIL

    2.2 3.8 L3 C++
    Generic Image Library.

  • DCMTK

    - -
    DICOM Toolkit.

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