EdgeGlow — Sobel edge detection redrawn as glowing neon outlines

What it does

EdgeGlow runs a Sobel operator over a downscaled grayscale of your source to find edges, then redraws only those contours as crisp neon lines. A two-pass additive bloom composites a blurred copy of the lines over a tight bright core, so the outlines genuinely glow rather than just sit flat. You control the Threshold (how much detail becomes a line), Thickness, an Invert toggle that flips lit and unlit areas, plus Glow radius and Intensity for the strength of the halo. A Quality segment (300–480px working resolution) lets you trade sharpness against speed, and everything updates live as you tweak.

Four Color Modes change how the contours are tinted: Mono draws white-on-black brightness lines, Neon paints every edge in your chosen Line Color, Rainbow (Pro) maps hue to edge position and orientation with an animatable Hue Cycle that rotates over time, and Source (Pro) keeps each edge in the original color of the pixel underneath it. The Background can be solid Black, a dimmed version of the source, or fully Transparent for stacking over other layers. Chain it with other effects using Combine, animate any control on the keyframe timeline, render at 9:16, 1:1, or 16:9, and export to MP4, WebM, or PNG.

Use it for

• Neon outline intros and transitions for music videos and DJ-set reels
• Wireframe-style contour overlays stacked over footage via Transparent background
• Rainbow edge animations that cycle hue across a beat-synced loop
• Glowing line-art portraits from a webcam in real time
• Techno and club visuals projected behind a live set
• Turning product shots or logos into clean neon outline graphics

How to use it