Frequency Domain Filter

Author: O.Conrad (c) 2023
Menu: Imagery | Fourier Analysis

Description

The frequency domain filter works on the discrete Fourier transformation.

References

OpenCV Tutorial | Fourier Transform

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Grid	grid, input	`GRID`	-	-
Output	Filtered Grid	grid, output	`FILTERED`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Filter	choice	`FILTER`	-	Available Choices: [0] range [1] power of distance [2] Hann window [3] Gaussian Default: 2
	Inverse	boolean	`INVERSE`	-	Default: 0
	Range	value range	`RANGE`	-	-
	Power	floating point number	`POWER`	-	Default: 0.500000
	Band Width	floating point number	`SCALE`	-	Minimum: 0.000000 Default: 2.000000

Command Line


Usage: saga_cmd imagery_opencv 14 [-GRID ] [-FILTERED ] [-FILTER ] [-INVERSE ] [-RANGE_MIN ] [-RANGE_MAX ] [-POWER ] [-SCALE ]
  -GRID:           Grid
	grid, input
  -FILTERED:       Filtered Grid
	grid, output
  -FILTER:
                        Filter
                        	choice
                        	Available Choices:
                        	[0] range
                        	[1] power of distance
                        	[2] Hann window
                        	[3] Gaussian
                        	Default: 2
  -INVERSE:        Inverse
	boolean
	Default: 0
  -RANGE_MIN:   Range
	value range
  -RANGE_MAX:   Range
	value range
  -POWER:       Power
	floating point number
	Default: 0.500000
  -SCALE:       Band Width
	floating point number
	Minimum: 0.000000
	Default: 2.000000