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Harris Geospatial / Docs Center / IDL Reference / Color Table / Color Table Manipulation

Color Table Manipulation

Color Table Manipulation

!COLOR - Contains standard RGB color triplets.

CMYK_CONVERT - Converts color triples to and from RGB, HLS, and HSV.

COLOR_QUAN - Converts true-color (24-bit) image to pseudo-color (8-bit) image.

COLORMAP_APPLICABLE - Determines whether the current visual class supports the use of a colormap. (Direct Graphics)

CT_LUMINANCE - Calculates the luminance of colors.

CW_PALETTE_EDITOR - Creates a compound widget to display and edit color palettes.



GAMMA_CT - Applies gamma correction to a color table.

H_EQ_CT - Histogram-equalizes the color tables for an image or a region of the display.

H_EQ_INT - Interactively histogram-equalizes the color tables of an image or a region of the display.

HLS - Creates a color table in Hue, Lightness, Saturation color system.

HSV - Creates a color table based on Hue and Saturation Value color system.

IDLgrPalette - An object that contains a red-green-blue color lookup table.

LOADCT Procedure - Loads one of the predefined IDL color tables. (Direct Graphics)

MODIFYCT Procedure - Saves modified color tables in the IDL color table file. (Direct Graphics)

MULTI Procedure - Replicates current color table to enhance contrast. (Direct Graphics)

PSEUDO - Creates a pseudo-color table based on Lightness, Hue, and Brightness system.

REDUCE_COLORS - Reduces the number of colors used in an image by eliminating unused pixel values.

STRETCH - Stretches a color table for contrast enhancement.

TEK_COLOR Procedure - Loads color table based on Tektronix printer. (Direct Graphics)

TVLCT Procedure - Loads a color table. (Direct Graphics)

XLOADCT Procedure - Provides GUI to interactively select and load color tables. (Direct Graphics)

XPALETTE Procedure - Displays widget used to create and modify color tables. (Direct Graphics)

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