NdviOp Operator |

# NdviOp Operator Description

## Overview

Name: | `NdviOp`
Full name: | `org.esa.snap.ndvi.NdviOp`
Purpose: | The retrieves the Normalized Difference Vegetation Index (NDVI).
Version: | 1.3

## Description

The `NdviOp` retrieves the Normalized Difference Vegetation Index (NDVI).

## Sources

Name | Description
--- | ---
`sourceProduct` | The source product.

## Parameters

Name | Data Type | Default | Description | Constraints
--- | --- | --- | --- | ---
`redFactor` | `float` | `1.0F` | The value of the red source band is multiplied by this value. |
`nirFactor` | `float` | `1.0F` | The value of the NIR source band is multiplied by this value. |
`redSourceBand` | `String` | `` | The red band for the NDVI computation. If not provided, the operator will try to find the best fitting band. |
`nirSourceBand` | `String` | `` | The near-infrared band for the NDVI computation. If not provided, the operator will try to find the best fitting band. |