Real-time color mapping system and method

A real-time color mapping method, comprising:

• reading a mapping table stored in a memory;
• and
• utilizing the mapping table to convert a first image grayscale value into a second image grayscale value, wherein the first image grayscale value represents a first color that is identified by n first grayscale values, and each of the n first grayscale values is represented by m bits, and the second image grayscale value represents a second color that is identified by n second grayscale values, and utilizing the mapping table to convert the first image grayscale value into the second image grayscale value further comprising:
• utilizing n×(m−i) bits consisting of the n first grayscale values as the memory address to look up in the mapping table to convert the first color into the second color, and n×(m−i)×(2̂(n×(m−i))) bits in the memory are used to store the mapping table, where n>1 and m>i≧1.