digiKam is a KDE photo collection manager. It provides streamlined importing and organizing/classifying them into albums or chronologies. Besides allowing custom directory schemes for storage, it also permits plain tagging, indexing and rating. Through KIPI it integrates with other KDE photo management software; but also provides a Light Table tool to pick highest quality shots from a series, or retouch them. A built-in image editor can apply colorization and lightning correction effects.
Lossless and lossy image optimizer for PNG/JPEG/WebP/APNG (uses wine)
An image viewer and browser utility for the GNOME environment. Image browser Browse your hard disk showing you thumbnails of image files. Thumbnails are saved in the same database used by Nautilus so youdon't waste disk space. Automatically update the content of a folder. Copy, move, delete images and folders. Bookmarks of folders and catalogs. Image viewer View single images (including GIF animations). Supported image types are: BMP, JPEG, GIF, PNG, TIFF, TGA, ICO, XPM, JXL, AVIF. Optional
wxSVG is C++ library to for Scalable Vector Graphic (SVG) files. It can create, manipulate and render them using the wxWidgets toolkit.
libpng is the PNG image format reference implementation. Portable Network Graphics are the most widely used raster image format, patent-free, based on lossless data compression, support indexed/paletted, grayscale, and 24 or 32 bit truecolor images with transparency. It's also an highly extensible container format, with built-in color profiles and representation information, textual meta data, filters, progressive interlacing, and permits animations in the derived APNG or MNG formats.
RawTherapee is a powerful, cross-platform raw photo processing system, released as Free Software (GPLv3). It is designed for developing raw files from a broad range of digital cameras and targeted at users ranging from enthusiast newcomers who wish to broaden their understanding of how digital imaging works to professional photographers. RawTherapee provides a powerful suite of tools for you to produce amazing photos and showcase your creativity. RawTherapee benefits users who take the time to
Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata.
JPEG XL was standardized in 2022 as ISO/IEC 18181. The core codestream is specified in 18181-1, the file format in 18181-2. Decoder conformance is defined in 18181-3, and 18181-4 is the reference software.
The Insight Toolkit (ITK) is an open-source, cross-platform toolkit for N-dimensional scientific image processing, segmentation, and registration. Segmentation is the process of identifying and classifying data found in a digitally sampled representation. Typically the sampled representation is an image acquired from such medical instrumentation as CT or MRI scanners. Registration is the task of aligning or developing correspondences between data. For example, in the medical environment, a CT sc
libplacebo is, in a nutshell, the core rendering algorithms and ideas of mpv rewritten as an independent library. As of today, libplacebo contains a large assortment of video processing shaders, focusing on both quality and performance. These include features such as the following: High-quality, optimized upscaling and downscaling including support for polar filters ("Jinc"), anti-aliasing, anti-ringing and gamma correct scaling. Dynamic HDR tone mapping, including real-time measurement of scen
Siril is an astronomical image processing tool. It is specially tailored for noise reduction and improving the signal/noise ratio of an image from multiple captures, as required in astronomy. Siril can align automatically or manually, stack and enhance pictures from various file formats, even image sequence files (films and SER files). It works well with limited system resources, like in embedded platforms, but is also very fast when run on more powerful computers. Contributors are welcome. Prog
The Insight Toolkit (ITK) is an open-source, cross-platform toolkit for N-dimensional scientific image processing, segmentation, and registration. Segmentation is the process of identifying and classifying data found in a digitally sampled representation. Typically the sampled representation is an image acquired from such medical instrumentation as CT or MRI scanners. Registration is the task of aligning or developing correspondences between data. For example, in the medical environment, a CT sc
Gwyddion is a modular SPM (Scanning Probe Microsope) data visualization and analysis tool. It can be used for all most frequently used data processing operations including: leveling, false color plotting, shading, filtering, denoising, data editing, integral transforms, grain analysis, profile extraction, fractal analysis, and many more. The program is primarily focused on SPM data analysis (e.g. data obtained from AFM, STM, NSOM, and similar microscopes). However, it can also be used for analyz
Simple Qt-based image viewer. Resize, rotate, flip, adjust colors. Copy, crop or paste selection. Paste to side. Effects. Slideshow. Thumbnails. Batch conversion.
Simple to use paint program like Paintbrush for Mac or classic MS Paint, but for Linux.
IMMUSE is command-line image conversion and manipulation utility. IMMUSE offers the following image manipulations: * format conversion (all supported by local Imager installation) * scaling/resizing * stretching * aspect-preservig single dimension scaling/resizing * flipping, horizontal and vertical * rotation, CW. CCW and by EXIF information * grayscale conversion IMMUSE is designed to work on many files in one run but can be used on single file with optional destination filename change. IM
QVV is Qt-based image viewer. It has usual interface features with multiple browser and image view windows and also offers full keyboard-only support. It is licensed under GPLv2.
This program allows you to view BPG Images in Windows, Linux and macOS. Features: * Large images are autoscaled to fit screen area * Basic support for animated images (zooming, rotating and exporting for animated images are not supported) * Zoom In/Out * Full screen mode * Support mouse dragging of the zoomed image * Cyclic view of all images in the same directory * Saving a copy of the opened file as a PNG file * Saving a copy of the opened file * Deleting the opened files * Rotating the view (
GUI for the most used ImageMagick functionality for processing pictures: - scaling/resize, - crop, - text annotation, inside or outside of picture (mems generator), - border around picture, - rotation, - black-white or sepia, - contrast increase/decrease or normalize or histogram stretching, - color auto-level or equalize, - adding logo image o picture, - file formats: JPG, PNG, TIFF, SVG - format conversion into JPG, PNG, TIFF.
Pixelitor is a Java/cross-platform image editor. It provides image filters, drawing tools, layered editing, bleding modes, multiple undo steps, etc. Its main attraction are the more than 80 unique image filters and color adjustment tools. Besides supporting standard graphic files, it defaults to saving in its custom PXC format (a gzipped Java object serialization for retaining layer data).
Crosti helps in creating custom cross-stitching schemes from image files / photographs. It supports all common raster and vector images, permits various colorizations and adaptions, resizing and rotating templates, adding lines or circles, and obviously printing them out.
TubePress provides a modern photo and video gallery PHP script. It can index and display thumbnails, photo meta data, categories, Youtube/Vimeo videos, favourites. TubePress displays them either embedded, in popups or modal overlays.
shufti is a lightweight, PyQt-based image viewer that non-destructively saves and restores the zoom level, rotation, window size, desktop location and viewing area on a per-image/file location basis.
An alternative to Windows' built in Snipping Tool with auto Imgur Upload or Image to Clipboard Copy for even faster Image sharing.
Pure Java cross-platform image processing framework that provides features for image and video frame processing, multi-threading image processing, GUI integration, extensibility via plug-ins, unit text automation among other things.
FIM is a lightweight universal image viewer, mostly for Linux. It is highly customizable and scriptable, and for users who are comfortable with software like the VIM text editor or the Mutt mail user agent. You can control it using the keyboard. FIM can open many file formats (even using converters) and it can display pictures graphically, with the Linux framebuffer or under X/Xorg, or in a terminal as ASCII Art renderings.
Pinta is a graphics drawing/editing program modeled after Paint.NET. It strives to be simple yet feature-rich, and runs cross-platform. Drawing tools include freehand, lines, rectangles, ellipses, and more. It allows unlimited layering, undo and redo history, over 35 image effects, and supports floating or MDI workspace layout.
BPGconv can convert multiple JPEG or PNG files into BPG files at once. The conversion processes run parallel to each other, so they can be completed in a shorter time. You can also visually confirm the change in file size from before and after the conversion. The application screen is made up of a single screen. It is designed so you can complete all operations without the need to go back and forth between multiple windows. You can switch between encoding (JPEG/PNG to BPG) and decoding (BPG to J
BPG (Better Portable Graphics) is a new image format. Its purpose is to replace the JPEG image format when quality or file size is an issue. Using BPGviwer you can view any BPG file.BPG is a lossy and lossless picture compression format based on High Efficiency Video Coding(HEVC))
DiffImg computes pixel discrepancies between two image files and displays them as color mask or as yellow/red overlay. It also provides a dual panel display, can compute the mean error, RMS and min/max values, shows an error histogram, or display a slideshow for image directories. This allows for compression level comparisons, or optimizing raytracing parameters.
A simple cross platform GIF animator, written in Java.
KPhotoAlbum lets you index, search, group and view images by keywords, date, locations and persons. It provides a quick and elegant way to lookup groups of images when you have thousands of pictures on your hard disk. The information associated with each photo is stored in an XML file. Together with its keywords, KPhotoAlbum stores each picture's MD5 sum, so it will recognize them even if you move them to another directory. KPhotoAlbum can also create HTML galleries with the images you select
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