darktable vs GraphicsMagick

darktable is a free photography workflow application for organizing digital negatives and developing raw images. It stores images in a database and provides a zoomable lighttable, while its editing leaves original files unchanged. It imports standard, raw and high dynamic range formats such as JPEG, CR2, NEF, HDR, PFM and RAF. Color tools include automatic display-profile detection on most systems and built-in ICC profiles for sRGB, Adobe RGB, XYZ and linear RGB. Many operations can use OpenCL GPU acceleration, and tethered shooting with live view is supported for some camera brands. Exports include disk storage, email attachments, Piwigo webalbums and HTML-based galleries; many aspects can also be scripted in Lua. Optional AI tools cover object masking, denoising and upscaling, but the Flatpak release does not include them as of September 2026. Downloads are available for Windows, macOS and Linux/Unix options. macOS bundles require version 13.5 or later. The project notes that the learning curve can be steep.

GraphicsMagick is free image-processing software with command-line tools, programming interfaces, and graphical interfaces for image conversion, editing, and 2D vector rendering. It can resize, rotate, sharpen, reduce colors, apply effects, compare and composite images, create montages and GIF animations, and draw shapes or text. It reads, writes, and manipulates images in more than 92 major formats, including AVIF, GIF, HEIC, JPEG, JPEG-2000, JXL, PNG, PDF, TIFF, and WebP. The software also supports very large images, including gigapixel-size files. OpenMP multi-threading can scale CPU-bound processing across processor cores when built with a compatible compiler. Interfaces include C, C++, Lua, Perl, PHP, Python, Tcl, Ruby, Windows .NET, and Windows COM, alongside the command line. Some format support relies on external components, such as Ghostscript for PDF and PostScript or dcraw for camera RAW formats. GraphicsMagick is distributed under an MIT-style license for open-source, proprietary, or GPLed applications. The project lists version 1.3.48, released July 23, 2026, as current and recommends updating because significant issues are addressed in almost every release.