Patent ID: 7454089

Claim:
An interpolation system applicable to a grayscale-transformed image data for calculating a grayscale value of a destination pixel where said interpolation system comprises: four original pixels that form the corners of a rectangle and where each original pixel has a correspondent grayscale value; said rectangle is further divided into a plurality of sections where each section has a central reference pixel; a receiving module, for receiving said correspondent grayscale values of said four original pixels and an interpolation transformation matrix; a calculation module, for calculating correspondent four elements of said interpolation transformation matrix of said central reference pixels according to said interpolation transformation matrix and relative coordinates of said central reference pixels to said original pixels; a judging module, for determining an operational section of said destination pixel according to coordinates of said destination pixel; and an operator, for making an inner product of said four elements of interpolation transformation matrix in said operational section of said destination pixel to grayscale values of said original pixels, and getting a grayscale value of said destination pixel.