Patent ID: 6690429
Filing Date: 2004-02-10
Classification: H04N

Abstract:
A device for processing a color signal comprising:a maximum value generator which receives an input color signal, delays the input color signal by N taps, and outputs a maximum value m from among the delayed input color signal; a delay which delays said input color signal by (Nâˆ’1)/2 taps and outputs an original value o; a minimum value filter which receives the input color signal, delays the input color signal by N taps and outputs a minimum value n from among the delayed input color signal; a selector which selects and outputs one of the maximum value m, an original color signal o, or the minimum value n, according to a selection signal s; and a selection controller which generates the selection signal s based upon comparisons between relationships of the maximum value m, the original color signal o, and the minimum value n with respect to each other, and further comparisons between each of those relationships to the same set value, which is a predetermined threshold value Th, and outputs the selection signal s to the selector.