Patent ID: 6198842
Filing Date: 2001-03-06
Classification: G06T,H04N

Abstract:
A computer-implemented method for compressing a digital multi-spectral image represented by a first color space, the method comprising the steps of:(a) transforming a first set of first color space components to a plurality of second color space components, wherein this step of transforming comprises the step of inputting the first set of first color space components into a first transformer having the following transformation equations embedded therein:C'=Round ((255-R)/D)M'=Round ((255-G)/D)Y'=Round ((255-B)/D)and D=2 (E )+1, wherein E is the desired loss and equal to one, and wherein the first color space comprises an RGB color space and the second color space comprises a C'M'Y' color space;(b) compressing the second color space components; and(c) reconstructing and transforming the compressed second color space components into a second set of first color space components such that the difference between each of the first set of first color space components and the second set of first color space components is bound by a predetermined range of values.