Overview
The Create Color Composite raster function creates a threeband raster from a multiband raster dataset in which each band can use an algebraic calculation based on band algebra.
Notes
When defining a band arithmetic algorithm, you can enter a singleline 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 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 VVVH for blue.
Parameters
Parameter  Description 

Input raster  The input multiband raster data. 
Method  Specifies the method that will be used to extract bands.

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 (/). 