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Posted on January 24, 2023 (Updated on July 10, 2025)

Create a mask out of a raster layer

Hiking & Activities

How do you make a raster mask?

Binary Rasters

  1. Display an image that you want to mask.
  2. From the Toolbox, select Raster Management > Build Raster Mask.
  3. Select the input file and click OK.
  4. From the Mask Definition dialog menu bar, select Options > Import Data Range.
  5. Enter a minimum and/or maximum value in the Data Min Value and Data Max Value fields.

How do I mask a raster in ArcMap?

Procedure

  1. In ArcMap, open the ArcToolbox window and navigate to Spatial Analyst Tools > Extraction > Extract by Mask.
  2. In the Extract by Mask dialog box, select or browse the grid to clip as the Input raster.

What is raster masking?

Masking is a common operation in raster processing. It is setting certain cells to the NoData value. This is usually done to remove low-quality observations from the raster processing. Another related use case is to “clip” a raster to a given polygon.

How do I add a raster mask in Photoshop?

Quote from video: Well in photop it's called add a raster mask. Okay so i've clicked on the store layer i come down here to the bottom of the properties panel click on raster mask.

How do you use a raster mask?

Quote from video: So go to the bottom which is called add raster mask it's sort of like a rectangle with a circle in the middle with the layer you want selected make sure the thumbnail mask is selected.

How do I make a mask on my own layer?

Create a layer mask

  1. Select a layer in the Layers panel.
  2. Click the Add layer mask button at the bottom of the Layers panel. A white layer mask thumbnail appears on the selected layer, revealing everything on the selected layer.

 

How do I create a mask layer in ArcMap?

To mask a layer, follow these steps:

  1. Choose one or more layers to be masked in the Contents pane.
  2. On the Feature Layer tab, in the Drawing group, click Masking .
  3. On the drop-down menu, check one or more layers in the list. The layers with check marks mask the selected layer.


How do I mask part of an image?

Quick steps for creating a clipping mask:

  1. Select a text or graphic layer to fill with an image.
  2. Click Fill with image on the tool palette & choose an image.
  3. Select Edit image fill on the Text Tools panel.
  4. Adjust the image behind your text or shapes, then click Done.

 

How do I clip a raster layer?

Here are the steps to clip rasters using the Image Analysis toolbar in ArcGIS:

  1. Enable Image Analysis Toolbar. Enable the Image Analysis Toolbar (Windows > Image Analysis).
  2. Select Raster to Clip. In the image analysis toolbar, select the raster that you want to clip.
  3. Select Polygon Boundary to Clip To.
  4. Click Clip Icon.

 

How do you create a mask in GIS?

To mask a layer, follow these steps:

  1. Choose one or more layers to be masked in the Contents pane.
  2. On the Feature Layer tab, in the Drawing group, click Masking .
  3. On the drop-down menu, check one or more layers in the list. The layers with check marks mask the selected layer.


How do I create a masked image?

Quick steps for creating a clipping mask:

  1. Select a text or graphic layer to fill with an image.
  2. Click Fill with image on the tool palette & choose an image.
  3. Select Edit image fill on the Text Tools panel.
  4. Adjust the image behind your text or shapes, then click Done.

 

How do I create a raster mask in Qgis?

QGIS – Mask a Raster Tile

  1. Choose the input raster tile and the mask polygon layer, and set the Source CRS as needed – e.g. 27700.
  2. Then choose to output the result to a new File, saving the tile with a new name and choosing the image type e.g. .tif.

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