17-7 冗長Haar Wavelet変換を用いたシャープニング-デモザイキング法の実現(第17部門 画像処理)

抄録

The shrinkage operation in the wavelet transform domain is known to perform approximately like the TV (total variation) regularization in the image space domain. An image deblurring method with the classical shrinkage scheme in the wavelet transform domain was recently proposed by Chan et al. This paper proposes a new sharpening-demosaicing method using the redundant Haar wavelet transform and our previously proposed color shrinkage scheme. Our proposed method performs demosaicing and sharpening simultaneously. Simulation results demonstrate that our proposed method works as well as our previously proposed sharpening-demosaicing method using the TV regularization in the image space domain.