Blob Tracker Effect

Apply Blob Tracker to images and videos online

Track blobs in images and videos. Detect bright or keyed regions, then draw boxes, centers, captions, and connecting paths in real time.

Original image before applying Blob Tracker effect Before
Image with Blob Tracker effect applied After

Ideas for using the effect

Motion tracking overlays

Add detection boxes and center markers to moving subjects for a technical tracking look.

Experimental surveillance style

Create computer vision, scanner, or monitoring visuals with captions and colored targets.

Key color detection

Track regions that match a chosen key color, then tune threshold and persistence for cleaner results.

Connected path graphics

Link detected blobs with straight, arched, or smooth lines for motion maps and generative diagrams.

Frequently Asked Questions

What is the Blob Tracker effect?

Blob Tracker detects connected regions in an image or video and draws tracking overlays around them.

What can it track?

It can track bright or keyed regions, depending on the selected key color, threshold, and persistence settings.

Which overlays are available?

You can draw full boxes, corner boxes, circles, center markers, captions, and connecting lines.

Can I customize the tracking style?

Yes. Adjust box color, palette, blend mode, thickness, opacity, fill, caption placement, line type, and line style.

Does Blob Tracker work on videos?

Yes. Blob Tracker processes video in real time and keeps track IDs stable across frames.

Can I preview the detection mask?

Yes. Enable debug mask to see the mask that the blob tracker uses for detection.

Try Blob Tracker now