Smart (Selective) Blur / Blur Effects

Smart (Selective) Blur

PhotoDemon’s Smart Blur tool allows you to selectively blur smooth or edge regions of an image. Radius controls the strength of the blur, while Threshold controls how smooth (or edged) a region must be to be considered for blurring. Unlike other photo editors, the threshold value is not absolute – pixels near the threshold are automatically feathered, to prevent any unsightly lines or marks in regions near the threshold value.

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).