Graphics, Color Table Manipulation Routines
- COLOR_CONVERT
- Convert color triples to and from RGB, HLS, HSV.
- COLOR_QUAN
- Convert true-color (24-bit) images to pseudo-color (8-bit).
- CT_LUMINANCE
- Calculate luminance of color in COLORS common block.
- GAMMA_CT
- Gamma correction for color tables.
- H_EQ_CT
- Histogram equalize the color tables for an image or region of the
display.
- H_EQ_INT
- Interactively histogram-equalize the color tables of an
image or region of the display.
- HLS
- Hue, Lightness, Saturation color system color tables.
- HSV
- Hue, Saturation, Value color system color tables.
- LJLCT
- Load standard color tables for DEC LJ250 printer.
- LOADCT
- Load built-in IDL color tables.
- MODIFYCT
- Save modified color tables in the IDL color table file.
- MULTI
- Replicate current color table to enhance contrast.
- PSEUDO
- Lightness, Hue, Brightness color system color tables.
- REDUCE_COLORS
- Reduce number of colors used by an image by eliminating
unused pixel values.
- STRETCH
- Linear color table contrast enhancement.
- TEK_COLOR
- Load special color table based on Tektronix printer.
- TVLCT
- Load display color tables.
- XLOADCT
- Interactively select and adjust color tables.
- XPALETTE
- Interactively create and edit color tables.