Patent ID: 6175430
Filing Date: 2001-01-16
Classification: G06T,H04N

Abstract:
An interpolating operation method for a color image signal composed of image signal components representing picture elements in a color image, the method comprising the steps of:i) converting original R, G, and B color signal components, representing each of the picture elements of the original image signal, into a luminance signal component and a color difference signal component for each of the picture elements;ii) obtaining an interpolated luminance signal component from the converted luminance signal component by employing a first interpolating procedure for enhancing sharpness of the interpolated luminance signal components;iii) obtaining an interpolated color difference signal component from the converted color difference signal component by employing a second interpolating procedure for enhancing stability of the interpolated color difference signal components; andiv) converting said interpolated luminance signal component and said interpolated color difference signal component into supplemental R, G, and B color signal components to obtain an interpolation image signal, composed of said supplemental R,G, and B color signal components, for supplementing the original R, G, and B signal components.