Tool Laplacian Filter
Other Common Names: Laplacian, Laplacian of Gaussian, LoG, Marr Filter
Standard kernel 1 (3x3):
0 | -1 | 0
-- + -- + --
-1 | 4 | -1
-- + -- + --
0 | -1 | 0
Standard kernel 2 (3x3):
-1 | -1 | -1
-- + -- + --
-1 | 8 | -1
-- + -- + --
-1 | -1 | -1
Standard kernel 3 (3x3):
-1 | -2 | -1
-- + -- + --
-2 | 12 | -2
-- + -- + --
-1 | -2 | -1
Parameters
| Name | Type | Identifier | Description | Constraints |
Input | Grid | Grid, input | INPUT | - | - |
Output | Filtered Grid (*) | Grid, output, optional | RESULT | - | - |
Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
Method | Choice | METHOD | - | Available Choices: [0] standard kernel 1 [1] standard kernel 2 [2] Standard kernel 3 [3] user defined kernel Default: 3 |
Standard Deviation | Floating point | SIGMA | The standard deviation, expressed as a percentage of the radius. | Minimum: 0.000010 Default: 50.000000 |
Kernel Type | Choice | KERNEL_TYPE | The kernel's shape. | Available Choices: [0] Square [1] Circle Default: 1 |
Radius | Integer | KERNEL_RADIUS | cells | Minimum: 0 Default: 2 |
(*) optional |
Command-line
Usage: saga_cmd grid_filter 2 [-INPUT <str>] [-RESULT <str>] [-METHOD <str>] [-SIGMA <double>] [-KERNEL_TYPE <str>] [-KERNEL_RADIUS <num>]
-INPUT:<str> Grid
Grid, input
-RESULT:<str> Filtered Grid
Grid, output, optional
-METHOD:<str> Method
Choice
Available Choices:
[0] standard kernel 1
[1] standard kernel 2
[2] Standard kernel 3
[3] user defined kernel
Default: 3
-SIGMA:<double> Standard Deviation
Floating point
Minimum: 0.000010
Default: 50.000000
-KERNEL_TYPE:<str> Kernel Type
Choice
Available Choices:
[0] Square
[1] Circle
Default: 1
-KERNEL_RADIUS:<num> Radius
Integer
Minimum: 0
Default: 2