RasterFlow
Edge Detect

Difference of Gaussians

gegl:difference-of-gaussians
Edge detection with control of edge thickness, based on the difference of two gaussian blurs.
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Operation pads

This operation exposes the following data pads, defining how it receives, processes, and emits image data:

Input
Output

Operation properties

Radius 1
gdouble
Default 1.00
Value range 0.00 • • 1000.00.
Radius 2
gdouble
Default 2.00
Value range 0.00 • • 1000.00.

Dither

Reduce the number of colors in the image, by reducing the levels per channel (colors and alpha). Different dithering methods can be specified to counteract quantization induced banding.

Edge Detection

Several simple methods for detecting edges.