# EdgeExtraction

## Brief Description

Computes edge features on every pixel of the input image selected channel

## Tags

Edge,Feature Extraction

## Long Description

This application computes edge features on a mono band image

## Parameters

- [param] -in <string> The input image to compute the features on.. Mandatory: True. Default Value: ""
- [param] -channel <int32> The selected channel index. Mandatory: True. Default Value: "1"
- [param] -ram <int32> Available memory for processing (in MB). Mandatory: False. Default Value: "128"
- [param] -out <string> Output image containing the edge features.. Mandatory: True. Default Value: ""
[choice] -filter Choice of edge feature gradient,sobel,touzi. Mandatory: True. Default Value: "gradient"

- [group] -gradient

- [group] -sobel

- [group] -touzi

- [param] -filter.touzi.xradius <int32> . Mandatory: True. Default Value: "1"
- [param] -filter.touzi.yradius <int32> . Mandatory: True. Default Value: "1"

## Limitations

None

## Authors

OTB-Team

## See Also

otb class

## Example of use

- in: qb_RoadExtract.tif

- channel: 1

- out: Edges.tif