CharLS is a codec library that can be used to build applications that can handle JPEG-LS compliant images. In the application you are writing you can call the CharLS codec and pass it images (sometimes called raster bitmaps), to have them encoded to JPEG-LS, or JPEG-LS streams, which CharLS will decode to images.

VXL (the Vision-something-Libraries) is a collection of C++ libraries designed for computer vision research and implementation.

Metapixel is a program for generating photomosaics. It can generate classical photomosaics, in which the source image is viewed as a matrix of equally sized rectangles for each of which a matching image is substituted, as well as collage-style photomosaics, in which rectangular parts of the source image at arbitrary positions (i.e. not aligned to a matrix) are substituted by matching images.

The Visualization Toolkit (VTK) is a C++ library for 3D computer graphics, image processing and visualization. It supports a wide variety of visualization algorithms including: scalar, vector, tensor, texture, and volumetric methods; and advanced modeling techniques such as: implicit modeling, polygon reduction, mesh smoothing, cutting, contouring, and Delaunay triangulation. VTK has an extensive information visualization framework, has a suite of 3D interaction widgets, supports parallel processing, and integrates with various databases on GUI toolkits such as Qt and Tk.

ITK-SNAP is a tool for segmenting anatomical structures in medical images. It provides an automatic active contour segmentation pipeline, along with supporting a manual segmentation toolbox. ITK-SNAP has a full-featured UI aimed at clinical researchers.

OpenColorIO, or OCIO, is a complete color management solution geared towards motion picture production, with an emphasis on visual effects and computer animation. It provides a straightforward and consistent user experience across all supporting applications while allowing for sophisticated back-end configuration options suitable for high-end production usage.

OCIO is compatible with the ACES and is LUT-format agnostic, supporting many popular formats.

Python library for object detection, semantic and instance segmentation.

Scan Tailor is an interactive post-processing tool for scanned pages. It performs operations such as page splitting, deskewing, adding/removing borders, and others. You give it raw scans, and you get pages ready to be printed or assembled into a PDF or DJVU file. Scanning, optical character recognition, and assembling multi-page documents are out of scope of this project.

Scan Tailer Advanced is a fork of Scan Tailer that merges Scan Tailor Featured and Scan Tailor Enhanced versions as well as including many more bug fixes.

OpenCV is a library aimed at real-time computer vision, including several hundred computer vision algorithms. It can be used to do things like:

• image and video input and output

• image and video processing

• displaying

• feature recognition

• segmentation

• facial recognition

• stereo vision

• structure from motion

• augmented reality

• machine learning

This package includes the Python bindings for OpenCV, which are also known as the OpenCV-Python library.

libansilove is a library for converting artscene file types to PNG images, including ANSI (.ANS) and many others. The library primarily serves to support the ansilove tool.

G'MIC is a full-featured framework for digital image processing. It provides several user interfaces to convert / manipulate / filter / visualize generic image datasets, ranging from 1D scalar signals to 3D+t sequences of multi-spectral volumetric images, hence including 2D color images.

ParaView is a VTK-based, parallel data analyzer and visualizer which allows exploring data interactively in 3D or programmatically.

Viewnior is an image viewer program. Created to be simple, fast and elegant. Its minimalistic interface provides more screenspace for your images. Among its features are:

1. Fullscreen & Slideshow

2. Rotate, flip, crop, save, delete images

3. Animation support

4. Browse only selected images

5. Navigation window

6. Set image as wallpaper (Gnome 2, Gnome 3, XFCE, LXDE, FluxBox, Nitrogen)

7. Simple interface

8. EXIF and IPTC metadata

9. Configurable mouse actions

Catimg is a little program that prints images in the terminal. It supports JPEG, PNG and GIF formats.

ytfzf is a POSIX script that helps you find PeerTube or YouTube videos without requiring API and opens/downloads them using mpv/ytdl.

feh is an X11 image viewer aimed mostly at console users. Unlike most other viewers, it does not have a fancy GUI, but simply displays images. It can also be used to set the desktop wallpaper. It is controlled via commandline arguments and configurable key/mouse actions.

imv is a command line image viewer intended for use with tiling window managers. Features include:

• Native Wayland and X11 support.

• Support for dozens of image formats including:

  • PNG

  • JPEG

  • Animated GIFs

  • SVG

  • TIFF

  • Various RAW formats

  • Photoshop PSD files

• Configurable key bindings and behavior.

• Highly scriptable with IPC via imv-msg.

Swayimg is a fully customizable and lightweight image viewer for Wayland based display servers. It supports the most popular image formats (JPEG, JPEG XL, PNG, GIF, SVG, WebP, HEIF/AVIF, AV1F/AVIFS, TIFF, EXR, BMP, PNM, TGA, QOI, DICOM, Farbfeld). It has fully customizable keyboard bindings, colors, and many other parameters. It also supports loading images from files and pipes, and provides gallery and viewer modes with slideshow and animation support. It also includes a Sway integration mode: the application creates an overlay above the currently active window, which gives the illusion that you are opening the image directly in a terminal window.

xzgv is a fast image viewer that provides extensive keyboard support.

Qimgv is a configurable Qt image viewer, with optional video support.

qView is a Qt image viewer designed with visually minimalism and usability in mind. Its features include animated GIF controls, file history, rotation/mirroring, and multithreaded preloading.

pqiv is a GTK-3 based command-line image viewer with a minimal UI. It is highly customizable, can be fully controlled from scripts, and has support for various file formats including PDF, Postscript, video files and archives.

gpicview is a lightweight GTK+ 2.x based image viewer. It is the default image viewer on LXDE desktop environment.

PIXterm shows images directly in your terminal, recreating the pixels through a combination of ANSI character background color and the unicode lower half block element. It supports JPEG, PNG, GIF, BMP, TIFF and WebP.