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ImageMagick is a free, open-source software suite for creating, editing, converting, and displaying images. It supports 200+ formats and offers powerful command-line tools and APIs for automation, scripting, and integration across platforms.
A very compact representation of a placeholder for an image.
darktable is an open source photography workflow application and raw developer
Lossy PNG compressor — pngquant command based on libimagequant library
Improved JPEG encoder.
Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations.
Graphics Creation Tools
Collection of cross-platform one-file C/C++ libraries with no dependencies, primarily used for games
Create, manipulate, and optimize GIF images and animations
SIMD, SWAR & GPU kernels for strings: search, hashing, sorting, edit distances, UTF-8 segmentation & ciphers for C, C++, CUDA, Python, Rust, Go, Swift, JS, C# & Java 🦖
GDI, OpenGL and Direct3D 9 re-implementation of the DirectDraw API for classic 2D games for better compatibility with Windows ME, 2000, XP, Vista, 7, 8, 10, 11, Wine (Linux/macOS/Android) and Virtual Machines
Easy to integrate Vulkan memory allocation library
Fork of VKD3D. Development branches for Proton's Direct3D 12 implementation.
A SIXEL encoder/decoder implementation derived from kmiya's sixel (https://github.com/saitoha/sixel).
an image compression framework.（一个高保真、高压缩比的图片压缩框架）
NCNN implementation of Real-ESRGAN. Real-ESRGAN aims at developing Practical Algorithms for General Image Restoration.
FidelityFX Super Resolution
3D CAD application
Leptonica is an open source library containing software that is broadly useful for image processing and image analysis applications. The official github repository for Leptonica is: danbloomberg/leptonica. See leptonica.org for more documentation.
FidelityFX Super Resolution 2
The OpenEXR project provides the specification and reference implementation of the EXR file format, the professional-grade image storage format of the motion picture industry.
jpegoptim - utility to optimize/compress JPEG files
SVG rendering and manipulation library in C++
libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format.