Contour tracing / Edge Detection

Contour tracing

PhotoDemon’s Contour Tracing tool provides a powerful way to isolate image edges, whether for scientific or artistic purposes. Variable radii, color inversion, and optional smoothing allow the tool to work on images of any size.

Like all PhotoDemon tools, a dedicated command bar allows you to save and load custom presets, randomize parameters, and reset to default values. Last-used settings are automatically saved and restored, and all changes provide a real-time preview (no click or mouse button release required).