Imagatic - Photo Effects Online

Get amazing effects on your photos by using only a web-browser.

Pencil draw / Glowing edge

Effect speed: Fast/Middle

License: Not required


Displays the edges of the image and generates a glowing effect around the stronger ones.


  • Strength: strength of the glowing.
  • Radius: larger value results in larger glow, while in case of lower values the glow almost follows the edges.
  • Pre-filter: the image is smoothed before the edge-detection to suppress noise, this parameter controls the strength of the suppression.
  • Invert: inverts the resulting image, all edges become white while the background will be black.


The original Tihany (Hungary) image:

Tihany original

By using the settings of strength of 20, radius of 15 and pre-filter of 1 the result is the following:

Tihany glowing edge

To get the glowing near to the church, decrease the radius to 3:

Tihany glowing edge near

Try it!

To try the Glowing edge effect online just open Imagatic and look for it in the Pencil draw group.