Triangle
Convert images to computer generated art using delaunay triangulation
...Users can adjust point density, blur, noise, edge sensitivity, wireframes, stroke width, grayscale output, and background color. The CLI accepts local files, image URLs, directories, stdin, and stdout and can process directory trees concurrently. Output formats include JPEG, PNG, BMP, and scalable SVG. A Go API exposes the same processing engine for applications that want to work directly with image data or streams.