Results

Building

Figure 1. Original Building

Figure 2. Demosaicked Building using Bilinear Interpolation

 

Figure 3. Demosaicked Building using PCSD

Figure 4. Demosaicked Building using Alternating Projections

Observations:

Boosting of Blue Channel : The most obvious artifact in the demosaicked images is that the left slanted edge of the building is much more blue than it should be in the when Alternating Projections is used (Figure 4). Closely examining the image demosaicked using PCSD, there are also dots of dark blue at the left slanted edge (Figure 3).

Color Aliasing : On close examination of the image demosaicked using Bilinear Interpolation (Figure 2), there is slightly more red and blue channel aliasing on the right slanted edge as compared to the demosaicked using the other 2 methods.