```{index} single: Filters; ITK Laplacian Recursive Gaussian Image Filter
```
# ITK Laplacian Recursive Gaussian Image Filter

Computes the Laplacian of Gaussian (LoG) of an image.

## Group (Subgroup)

ITKImageFeature (ImageFeature)

## Description

Computes the Laplacian of Gaussian (LoG) of an image by convolution with the second derivative of a Gaussian. This filter is implemented using the recursive gaussian filters.



### Input Parameter(s)

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Sigma | Scalar Value |Float64 | Set/Get Sigma value. Sigma is measured in the units of image spacing. |
| Normalize Across Scale | Bool |  | Define which normalization factor will be used for the Gaussian. See RecursiveGaussianImageFilter::SetNormalizeAcrossScale |

### Input Cell Data

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Image Geometry | Geometry Selection | Image | Select the Image Geometry Group from the DataStructure. |
| Input Cell Data | Array Selection | Allowed Types: int8, uint8, int16, uint16, int32, uint32, int64, uint64, float32, float64 | The image data that will be processed by this filter. |

### Output Cell Data

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Output Image Data Array | DataObjectName |  | The result of the processing will be stored in this Data Array. |

## Example Pipelines

## License & Copyright

Please see the description file distributed with this plugin.

## DREAM3D Mailing Lists

If you need help, need to file a bug report or want to request a new feature, please head over to the [DREAM3DNX-Issues](https://github.com/BlueQuartzSoftware/DREAM3DNX-Issues/discussions) GitHub site where the community of DREAM3D-NX users can help answer your questions.