RasterFlow
Generic

Convolution Matrix

gegl:convolution-matrix
Apply a generic 5x5 convolution matrix.
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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

(1,1)
gdouble
Default 0.00
(1,2)
gdouble
Default 0.00
(1,3)
gdouble
Default 0.00
(1,4)
gdouble
Default 0.00
(1,5)
gdouble
Default 0.00
(2,1)
gdouble
Default 0.00
(2,2)
gdouble
Default 0.00
(2,3)
gdouble
Default 0.00
(2,4)
gdouble
Default 0.00
(2,5)
gdouble
Default 0.00
(3,1)
gdouble
Default 0.00
(3,2)
gdouble
Default 0.00
(3,3)
gdouble
Default 1.00
(3,4)
gdouble
Default 0.00
(3,5)
gdouble
Default 0.00
(4,1)
gdouble
Default 0.00
(4,2)
gdouble
Default 0.00
(4,3)
gdouble
Default 0.00
(4,4)
gdouble
Default 0.00
(4,5)
gdouble
Default 0.00
(5,1)
gdouble
Default 0.00
(5,2)
gdouble
Default 0.00
(5,3)
gdouble
Default 0.00
(5,4)
gdouble
Default 0.00
(5,5)
gdouble
Default 0.00
Divisor
gdouble
Default 1.00
Offset
gdouble
Default 0.00
Value range -1.00 • • 1.00.
Red channel
gboolean
Default true
Green channel
gboolean
Default true
Blue channel
gboolean
Default true
Alpha channel
gboolean
Default true
Normalize
gboolean
Default true
Alpha-weighting
gboolean
Default true
Border
dictionary
Default Clamp
Possible values None • Clamp • Loop • Black • White

High Pass Filter

Enhances fine details.

GEGL graph

Do a chain of operations, with key=value pairs after each operation name to set properties. And aux=[ source filter ] for specifying a chain with a source as something connected to an aux pad.