colormap

PURPOSE

SYNOPSIS

DESCRIPTION

% -*- texinfo -*-
% @deftypefn {Function File} {} colormap (@var{map})
% @deftypefnx {Function File} {} colormap ('default')
% Set the current colormap.
%
% @code{colormap (@var{map})} sets the current colormap to @var{map}.  The
% color map should be an @var{n} row by 3 column matrix.  The columns
% contain red, green, and blue intensities respectively.  All entries
% should be between 0 and 1 inclusive.  The new colormap is returned.
%
% @code{colormap ('default')} restores the default colormap (the
% @code{jet} map with 64 entries).  The default colormap is returned.
%
% With no arguments, @code{colormap} returns the current color map.
% @seealso{jet}
% @end deftypefn

CROSS-REFERENCE INFORMATION

• jet % Create color colormap. This colormap is dark blue through blue, cyan,

• autumn % Create color colormap. This colormap is red through orange to yellow.
• bone % Create color colormap. This colormap is a gray colormap with a light
• brighten % Darkens or brightens the given colormap. If the @var{map} argument
• colorgradient % Define a colour map which smoothly traverses the given colors.
• contrast % Return a gray colormap that maximizes the contrast in an image. The
• cool % Create color colormap. The colormap is cyan to magenta. The argument
• copper % Create color colormap. This colormap is black to a light copper tone.
• flag % Create color colormap. This colormap cycles through red, white, blue
• gray % Return a gray colormap with @var{n} entries corresponding to values from
• hot % Create color colormap. This colormap is black through dark red, red,
• hsv % Create color colormap. This colormap is red through yellow, green,
• imshow % Display the image @var{im}, where @var{im} can be a 2-dimensional
• ind2gray % Convert an Octave indexed image to a gray scale intensity image.
• ind2rgb % Convert an indexed image to red, green, and blue color components.
• jet % Create color colormap. This colormap is dark blue through blue, cyan,
• ocean % Create color colormap. The argument @var{n} should be a scalar. If it
• pink % Create color colormap. This colormap gives a sepia tone on black and
• prism % Create color colormap. This colormap cycles trough red, orange, yellow,
• rainbow % Create color colormap. This colormap is red through orange, yellow, green,
• saveimage % Save the matrix @var{x} to @var{file} in image format @var{fmt}. Valid
• spring % Create color colormap. This colormap is magenta to yellow.
• summer % Create color colormap. This colormap is green to yellow.
• white % Create color colormap. This colormap is completely white.
• winter % Create color colormap. This colormap is blue to green.