sir if i execute it asking to type input arguments ?am new to matlab please sir do help me and i need the output immediately

http://www.mathworks.com/matlabcentral/fileexchange/8214-gray-image-to-color-image-conversion .

[Walter Roberson]

duplicates http://uk.mathworks.com/matlabcentral/answers/265920-hi-sir-in-this-matlab-code-the-gray-image-is-not-converting-into-color-image-showing-error-in-10th