LMSupply.Segmenter

LMSupply.Segmenter

Local image segmentation for .NET with automatic model downloading.

Features

• Zero-config: Models download automatically from HuggingFace
• GPU Acceleration: CUDA (NVIDIA), CoreML (macOS)
• MIT Licensed: SegFormer models for commercial use
• 150 ADE20K Classes: Indoor/outdoor scene understanding

Quick Start

using LMSupply.Segmenter;

// Load the default model
await using var segmenter = await LocalSegmenter.LoadAsync("default");

// Segment image
var result = await segmenter.SegmentAsync("photo.jpg");

Console.WriteLine($"Image: {result.Width}x{result.Height}");
Console.WriteLine($"Classes found: {result.UniqueClassCount}");

// Get class at pixel
int classId = result.GetClassAt(100, 100);
Console.WriteLine($"Class at (100,100): {segmenter.ClassLabels[classId]}");

Available Models

GPU Acceleration

Do not add ONNX Runtime packages (Microsoft.ML.OnnxRuntime*): LMSupply provisions the runtime itself, and a second copy conflicts with it. ExecutionProvider.Auto uses CUDA when the driver supports CUDA 13 and the CUDA 13 runtime and cuDNN 9 are installed on the machine (ONNX Runtime 1.30 is built for CUDA 13), CoreML on macOS, and the CPU otherwise. On Windows with an AMD or Intel GPU, ONNX sessions run on the CPU (DirectML was removed in 0.67.0). See GPU acceleration.