| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce color aliasing artifact from a color digital image having color pixels. <P>SOLUTION: This method provides the color digital image, prepares a luminance (L) signal and chrominance (C) signal from the color digital image, performs downsampling of the L and C signals and separates the image into a texture area and a non-texture area having a boundary line by using the downsampled L and C signals. Furthermore, the method cleans the downsampled C signal in the texture area according to the boundary line of the texture area and the downsampled C signal and cleans the downsampled C signal in the non-texture area according to the downsampled C signal. The color digital image from which the color aliasing artifact is reduced is obtained by performing upsampling of the C signal of which the noise is cleaned and using the L signal and the upsampled C signal. <P>COPYRIGHT: (C)2004,JPO</p> |
