Adaptive Colour Filter Array (CFA) Demosaicking with Mixed Order of Approximation

Abstract

will be employed so as to avoid the inclusion of the colour odro prxmto sepoe.Ti ssmr ape will be employed so as to avoid the inclusion of the colour and can produce higher accuracy. Once the two estimates on edge. However, if a colour edge is further away on the other each side of the missing colour have been determined, the side of the missing colour value, a higher order Of approximation for higher accuracy will be used instead. The m issing colour is the average of these estimates with their missing colour value is then estimated by combining the estimates from both sides with their respective orders of The remainder of the paper is organized as follows. approximation. This proposed method using mixed order of Section 2 details the adaptive order of demosaicking. Section approximation has been shown to produce better 3 presents the experimental results, and compares the performance than the method by selecting a single estimate proposed method with other existing techniques, and the as the output.conclusion is given in Section 4.

Color Filter Array Demosaicking Using High-Order Interpolation Techniques With a Weighted Median Filter for Sharp Color Edge Preservation

“…In this section, we describe a high-order extrapolation method with high accuracy to determine four directional estimates of the missing color pixel [17]- [21], [28]. Each of the directional estimates is obtained by exploiting the spectral correlations among neighboring pixels along that particular direction.…”