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    %% Adjust Contrast of RGB Image
% 
%%
% Read an RGB image into the workspace and display it.

% Copyright 2015 The MathWorks, Inc.

RGB = imread('football.jpg');
imshow(RGB)
%%
% Adjust the contrast of the RGB image, specifying contrast limits.
RGB2 = imadjust(RGB,[.2 .3 0; .6 .7 1],[]);
figure
imshow(RGB2)