function [ outputImg ] = drawrectangle( image, x, y, width, height, r, g, b )
% This function takes an image along with the coordinates to draw a
% rectangle.  The last four parameters are the red, green, and blue values
% of the rectangle to draw.  The image must be a color image.  Note that
% the x and y coordinates are for the top left corner of the image.
% 

% okay, first let's go ahead and get a copy... 
tempImg = im2double( image );

% now let's modify the boundaries to the color that we want...

% setup the image...remember, we're only drawing a border here...
% top horizontal...
tempImg( y:y+3, x:x+width, 1 ) = r;
tempImg( y:y+3, x:x+width, 2 ) = g;
tempImg( y:y+3, x:x+width, 3 ) = b;

% bottom horizontal
tempImg( y+height-3:y+height, x:x+width, 1 ) = r;
tempImg( y+height-3:y+height, x:x+width, 2 ) = g;
tempImg( y+height-3:y+height, x:x+width, 3 ) = b;

% left & right vertical
tempImg( y:y+height, x:x+4, 1 ) = r;
tempImg( y:y+height, x:x+4, 2 ) = g;
tempImg( y:y+height, x:x+4, 3 ) = b;

tempImg( y:y+height, x+width:x+width+4, 1 ) = r;
tempImg( y:y+height, x+width:x+width+4, 2 ) = g;
tempImg( y:y+height, x+width:x+width+4, 3 ) = b;

% now let's return it...
outputImg = tempImg;

% EOF