Complex wavelet based demosaicing for use in digital still cameras
Jan Aelterman, Bart Goossens, Aleksandra Pižurica · Ghent University Academic Bibliography (Ghent University) · 2008
We present a new approach to the problem of demosaicing for digital still cameras (DSC) imagery.Most state-of-the-art methods come down to interpolating the missing color components pixelwise, resulting in quite complex implementations in order to avoid image artifacts [2,3].We propose solving the demosaicing problem in the wavelet domain, which turns out to be very elegant.By making this approach locally and directionally adaptive, using our new Dual Tree Complex Wavelet Packet (DTCWPT) decomposition, we can avoid demosaicing artifacts in a simpler way.This results in a very fast demosaicing approach that is extremely compatible with oncamera wavelet based denoising.