%% Display Image of Matrix Data
% Create matrix |C|. Display an image of the data in |C|. Add a colorbar to
% the graph to show the current colormap.

% Copyright 2015 The MathWorks, Inc.


C = [0 2 4 6; 8 10 12 14; 16 18 20 22];
image(C)
colorbar

%%
% By default, the |CDataMapping| property for the image is set to
% |'direct'| so |image| interprets values in |C| as indices into the
% colormap. For example, the bottom right pixel corresponding to the last
% element in |C|, 22, uses the 22nd color of the colormap.
%
% Scale the values to the full range of the current colormap by setting
% the |CDataMapping| property to |'scaled'| when creating the image.

image(C,'CDataMapping','scaled')
colorbar

%%
% Alternatively, you can use the |imagesc| function to scale the values
% instead of using |image(C,'CDataMapping','scaled')|. For example, use
% |imagesc(C)|.
