### Clipping

The Clipping operation is used to create a subset of the image. It is possible to do this operation in two ways:

- Extent: The user defines the envelope (inside the original extent) to crop the raster.

- Lower Left X
- Lower Left Y
- Upper Right X
- Upper Right Y

- Dimension: The User defines the starting row and column and also sets the height and width to crop the raster.

- Initial Row
- Initial Column
- Height
- Width

It is accessible through:
Raster Processing > Clipping... (list of all raster layers will be available)
This wizard consists of the following steps:

#### Wizard Page 1 - Selection of the layer to apply the clipping operation (Layer Search)

1. On the List of Layers select the raster layer to clipping.
2. Optionally use Filter By Name field giving part of the layer name to help find the layer in the list.
3. Press Next to go to next step or Cancel to close the dialog.

#### Wizard Page 2 - Clipping parameters

1. Select the Type of clipping to be used (Extent or Dimension) and set the their specific parameters.
2. The acquisition of the extent is possible through the interface Raster Navigator. This interface offers several tools (such as zoom, color composition) to help in the selection of the desired area.

- Use tool to create a region of interest over the image to crop the raster.

3. Press Next to apply the contrast or Back to go to the previous wizard page.

#### Wizard Page 3 - Output information

1. Raster Info - First press and inform the folder where the resulting file will be saved.
2. Name - inform the raster name.
3. Extra Parameters - if there are some, see the details on how to inform then here.
4. Press Finish to save the resulting contrasted raster or Back to go to the previous wizard page.

Hint: The clipping image will be added as a new layer at the TerraView project.