A METHOD FOR EXTENDING AN IMAGE AT THE IMAGE BOUNDARY AND A METHOD AND APPARATUS FOR FILTERING THE IMAGE IN A DIGITAL SIGNAL PROCESSING SYSTEM

摘要

T is a plurality of odd integers, each having a T kernel function weighting coefficient, the first segment being one of the segments is the first unfiltered plurality of pixels, and the second segment near the segment is the second unfiltered A plurality of pixels, wherein a predetermined one of the unfiltered pixels includes at least two of the at least two symmetric T-tap digital filters common to both the first and second plurality of pixels at the image boundary of the two segments. In a multi-rate digital signal processing system for resizing an image to a segment, (T-2) / of the plurality of unfiltered first pixels and the unfiltered plurality of second pixels near a predetermined one of the unfiltered pixels. Multiply 2 by two times one of each kernel function weighting factor, so that the first and second mirrored half kernel middle Generating an accumulation, multiplying a predetermined pixel of the pixel by the center tap kernel function weighting coefficient of the digital filter, to generate another intermediate product, and generating the first mirrored half kernel product and the first mirrored half kernel product. Adding another intermediate product to produce a first segment estimate boundary filtering output pixel, and adding the second mirrored half kernel intermediate product and the another intermediate product to add a second segment estimate boundary filtering output pixel. And averaging the first segment estimate boundary filtering output pixel and the segment, thereby seamlessly extending the image across the image boundary.