Problem:  The NDVI function on the Image Analysis window returns unexpected results

【相关信息】
Article ID: 44407
Bug Id: N/A
Software:
ArcGIS for Desktop Advanced 10.2, 10.1, 10.2.1, 10.3, 10.2.2
ArcGIS for Desktop Basic 10.2, 10.2.1, 10.3, 10.2.2, 10.1
ArcGIS for Desktop Standard 10.2.1, 10.1, 10.2, 10.2.2, 10.3
Platforms: N/A

【问题描述】
The Normalized Difference Vegetation Index (NDVI) function on the Image Analysis window generates a standardized index representing relative biomass health and density. In some instances, applying the NDVI function to remotely sensed satellite imagery returns unexpected results.

【原因】
The NDVI function requires the correct input of the red and near infrared bands, since it calculates the differential reflection of the bands. Band orders corresponding to the red and infrared differ depending on the specific satellite sensor or source data. Selecting incorrect band orders for the red and near infrared bands returns incorrect results.