Raster Comparison

Compare two raster datasets to identify differences.

Overview

Raster comparison analyzes differences between two raster datasets, calculating change statistics and generating difference rasters.

Inputs

  • Raster Dataset 1: First raster dataset

  • Raster Dataset 2: Second raster dataset

  • Comparison Method: Difference calculation method

Outputs

Comparison results containing:

  • Difference raster

  • Change statistics

  • Summary report

Comparison Methods

  • Difference: Pixel value differences

  • Percent Change: Percentage change

  • Ratio: Ratio of values

Example

{
  "raster_dataset_id_1": 125,
  "raster_dataset_id_2": 126,
  "method": "difference"
}

Use Cases

  • Change detection

  • Time series analysis

  • Quality comparison

  • Validation

Notes

  • Rasters must have compatible extents

  • Resampling may be required

  • Results depend on comparison method

  • Processing time depends on raster sizes