Crop Raster

What is Crop Raster?

Crop Raster is a spatial analysis technique used to modify the spatial extent of raster data. This process involves selecting a specific area of interest within the larger raster dataset and removing the data that falls outside this designated boundary. The cropped raster retains only the necessary portion of the original dataset, making it easier to analyze, manage, and visualize relevant spatial information for specific study areas.

When would you use Crop Raster?

Crop Raster is particularly useful in scenarios where a raster dataset covers a much larger area than required for a specific analysis or project. This method is beneficial when:

Focusing analysis on a particular geographic area such as a city, county, or country within a larger region.
Reducing file size and computational load by eliminating unnecessary data.
Preparing input data for further spatial analyses that require smaller, more manageable datasets.
Enhancing visualization by only displaying the relevant portion of the dataset.

FAQs

Can I crop multiple rasters simultaneously?

Currently, raster cropping in Atlas is performed one raster at a time. To crop multiple rasters, repeat the process for each file.

What formats are supported for raster cropping?

Atlas supports commonly used raster formats such as GeoTIFF and JPEG2000 for cropping operations.

Do I need to specify coordinates for cropping?

Yes, you'll need to provide the specific coordinates defining the extent of the area you wish to crop the raster to.

Is my original raster data altered after cropping?

No, the Crop Raster function creates a new raster file with the cropped area, leaving the original data unchanged.