Patent ID: 7649557
Filing Date: 2010-01-19
Classification: H04N

Abstract:
1. An apparatus for processing a digital image signal, comprising: an interpolator configured to interpolate a digital Bayer pattern signal to provide an interpolated image signal; a color space converter configured to convert the interpolated image signal into a converted signal having a format including a luminance component and a chrominance component; a pseudo-luminance generator configured to generate pseudo-luminance signals for respective lines of the Bayer pattern signal; an edge detector configured to detect an edge in the Bayer pattern signal using a part of the interpolated signal as a luminance signal for a line of the Bayer pattern signal including a pixel subjected to edge detection and using the pseudo-luminance signals for adjacent lines; a color suppression coefficient calculator configured to generate a color suppression coefficient in response to edge information provided from the edge detector; and a color suppressor configured to suppress pseudo-color present in the chrominance component of the converted signal using the color suppression coefficient.