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Create Color Composite function

Overview

The Create Color Composite raster function creates a three-band raster from a multiband raster layer in which each band can use an algebraic calculation based on band algebra.

Notes

When defining a band arithmetic algorithm, you can enter a single-line algebraic formula for each expression to create a multiband output. The supported operators are unary, plus (+), minus (-), times (*), and divide (/).

When using a Band ID in an expression, identify the band by prefixing B or b to the band number.

A common band combination used for dual-polarized synthetic aperture radar (SAR) in linear units is VV for red, VH for green, and VV/VH for blue. If the input data is in decibels, the band combination should be VV for red, VH for green, and VV-VH for blue.

Parameters

Parameter

Description

Input raster

The input multiband raster data.

Method

Specifies the method that will be used to extract bands.

  • Band Names—The band name representing the wavelength interval on the electromagnetic spectrum (such as Red, Near Infrared, or Thermal Infrared) or the polarization (such as VH, VV, HH, or HV) will be used. This is the default.

  • Band IDs—The band number (such as B1, B2, or B3) will be used.

Red expression

The calculation assigned to the first band.

A band name, band ID, or an algebraic expression using the bands.

The supported operators are unary: plus (+), minus (-), times (*), and divide (/).

Green Expression

The calculation assigned to the second band.

A band name, band ID, or an algebraic expression using the bands.

The supported operators are unary: plus (+), minus (-), times (*), and divide (/).

Blue expression

The calculation assigned to the third band.

A band name, band ID, or an algebraic expression using the bands.

The supported operators are unary: plus (+), minus (-), times (*), and divide (/).