How to change particular pixel color of a binary image to other color?

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I have a binary image and i want to change the color of the black pixel to green. How do i do that ? Please help. Thanks in advance.
This is the binary image:

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Image Analyst
Image Analyst 2014년 10월 30일
Try this:
%grayImage = imread('cameraman.tif');
%binaryImage = grayImage > 128;
redAndBlueChannel = 255 * uint8(binaryImage);
greenChannel = 255 * ones(size(binaryImage), 'uint8'); % Green Everywhere.
rgbImage = cat(3, redAndBlueChannel, greenChannel, redAndBlueChannel);
Remove the % if you want to demo it using a standard MATLAB demo image.
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Doug Hull
Doug Hull 2014년 10월 30일
Change colormap?
im = round(rand(10));
colormap([0 1 0; 1 1 1])

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