Labelme

OpenCV

opencv/opencv

Popular

The classic computer vision library for image processing, video I/O and camera pipelines.

Ultralytics YOLO

ultralytics/ultralytics

Popular

Most-used real-time object detection, segmentation and pose library; train and deploy YOLO models easily.

torchvision

pytorch/vision

Popular

PyTorch's official package of vision datasets, transforms and pretrained models.

SAM 3

facebookresearch/sam3

New

Meta's Segment Anything Model 3: promptable detection, segmentation and tracking from text or clicks.

Supervision

roboflow/supervision

Roboflow's reusable utilities for detection post-processing, tracking, zones and annotation.

RF-DETR

roboflow/rf-detr

Trending (detected automatically)Rising

Roboflow's real-time transformer detector that beats YOLO-class models on accuracy at similar speed.

timm

huggingface/pytorch-image-models

PyTorch Image Models: hundreds of pretrained vision backbones with training and eval scripts.

Kornia

kornia/kornia

Differentiable computer vision library for PyTorch: geometry, augmentation and feature matching.

Detectron2

facebookresearch/detectron2

Legacy

Meta's detection and segmentation research platform; still cited widely but rarely updated.