abreheret/PixelAnnotationTool

Health v2 · maintenance only

Adoption not part of the score

1455 stars · 308 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A C++ desktop application for quickly annotating images with pixel-wise labels using OpenCV's watershed algorithm. Users draw markers with brushes and the algorithm propagates segmentation, which can be refined iteratively.

Use cases

• annotate images for semantic segmentation ground truth
• create pixel-wise masks for deep learning training data
• label image datasets quickly with watershed-assisted segmentation
• generate color mask annotations for computer vision projects
• refine image segmentation manually with brush markers

When to choose

• you need pixel-wise ground truth masks for image segmentation datasets
• you want semi-automatic annotation that is faster than fully manual labeling
• you work on Linux, macOS, or Windows and can use prebuilt binaries

When to avoid

• you need bounding-box-only annotation rather than pixel-wise masks
• you want a web-based or collaborative annotation tool
• you need active development or recent feature updates

Facets

application · maturity maintenance

image-processing computer-vision gui computer-vision image-processing machine-learning deep-learning windows cpp image-annotation semantic-segmentation watershed opencv qt5 ground-truth labeling-tool linux macos desktop

Member repositories

For agents

markdown · JSON · MCP: product_card(name="abreheret/PixelAnnotationTool")