C =updateC(Img, u, KB1, KB2, epsilon);

Can we give updateC() or like updateb().One of the program i got from net runs like this,in help menu its given only as update(op).Could anyone please tell me can we use updateC() instead of update() and the logic behind it.

[Walter Roberson]

I don't think we have any idea what you are talking about. updateC() is not a Mathworks-provided function. The name is too vague for us to know what it is intended to do.

Please give some context, perhaps the URL of the program you found.