Effects > Edge > Canny
Canny
The Canny filter allows you to detect edges in the image using the Canny method.
    
1. Choose Effects > Edge > Canny
2. Use the following options:
  Blur radius (px)
This option allows you to smooth the image with a Gaussian filter to reduce noise and unwanted details and textures.

Min = 5, Max = 500, Default = 10.
  Low Threshold (px)


Min = 0, Max = 255, Default = 10.
  High Threshold


Min = 0, Max = 255, Default = 25.
  Invert
Inverts the color channels, Red -> 255 - Red, Green -> 255 - Green, Blue -> 255 - Blue.
  Apply Hysteresis
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