GetColorTable Task

This task returns an array of red/green/blue (RGB) values from a specified IDL color table name.

Example

; Start the application

e = ENVI(/HEADLESS)

; Get the task from the catalog of ENVITasks

Task = ENVITask('GetColorTable')

; Specify task inputs

Task.COLOR_TABLE_NAME = 'CB-Paired'

; Run the task

Task.Execute

; Get the RGB array for the color table

Print, Task.OUTPUT_COLOR_TABLE

Syntax

Result = ENVITask('GetColorTable')

Input properties (Set, Get): COLOR_TABLE_NAME, REVERSE_COLOR_TABLE

Output properties (Get only): OUTPUT_COLOR_TABLE

Properties marked as "Set" are those that you can set to specific values. You can also retrieve their current values any time. Properties marked as "Get" are those whose values you can retrieve but not set.

Methods

This task inherits the following methods from ENVITask:

Properties

This task inherits the following properties from ENVITask:

COMMUTE_ON_DOWNSAMPLE

COLOR_TABLE_NAME (required)

Specify one of the following strings, indicating the name of the IDL color table:

B-W LINEAR

BLUE/WITE

GRN-RED-BLU-WHT

RED TEMPERATURE

BLUE/GREEN/RED/YELLOW

STD GAMMA-II

PRISM

RED-PURPLE

GREEN/WHITE LINEAR

GRN/WHT EXPONENTIAL

GREEN-PINK

BLUE-RED

16 LEVEL

RAINBOW

STEPS

STERN SPECIAL

Haze

Blue = Pastel - Red

Pastels

Hue Sat Lightness 1

Hue Sat Lightness 2

Hue Sat Value 1

Hue Sat Value 2

Purple-Red + Stripes

Beach

Mac Style

Oes A

Eos B

Hardcandy

Nature

Ocean

Peppermint

Plasma

Blue-Red

Rainbow

Blue Waves

Volcano

Waves

Rainbow18

Rainbow + white

Rainbow + black

CB-Accent

CB-Dark2

CB-Paired

CB-Pastel1

CB-Pastel2

CB-Set1

CB-Set2

CB-Set3

CB-Blues

CB-BuGn

CB-BuPu

CB-GnBu

CB-Greens

CB-Greys

CB-Oranges

CB-OrRd

CB-PuBu

CB-PuBuGn

CB-PuRd

CB-Purples

CB-RdPu

CB-Reds

CB-YlGn

CB-YlGnBu

CB-YlOrBr

CB-BrBG

CB-PuYG

CB-PRGn

CB-PuOr

CB-RdBu

CB-RdGy

CB-RdYlBu

CB-RdYlGn

CB-Spectral

OUTPUT_COLOR_TABLE

The resulting array containing the RGB values. The array dimensions are [256, 3].

REVERSE_COLOR_TABLE (optional)

Set this property to reverse the color table.

Version History

ENVI 5.5.1

Introduced

API Version

4.2