1. A method for performing noise reduction on a video stream having a plurality of fields including an early field and a late field, the method comprising: determining with a noise reduction unit whether a late current pixel of the late field is a luminance still pixel; modifying with the noise reduction unit a luminance value of the late current pixel when the late current pixel is a luminance still pixel; determining with the noise reduction unit whether the late current pixel is a chrominance still pixel; and modifying with the noise reduction unit a first chrominance value of the late current pixel when the late current pixel is a chrominance still pixel; wherein the determining with the noise reduction unit whether the late current pixel is a chrominance still pixel is performed only when the late current pixel is a luminance still pixel.