Efficient coding of morphology-based multiresolution pyramids
Alok R. Kher, Sunanda Mitra · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1994
The present paper discusses an approach of efficient coding of the error images obtained using the morphology based multiresolution pyramid decomposition technique proposed by Heijmans and Toel. A commonly used approach to achieve significant compression ratios in pyramid compression techniques is to discard the first error image. However, this may cause degradation of fine edges, texture information, and thin features. In the present paper we have proposed an estimator for the first error image. Directional filtering and sampling is used to decompose the error image into two components.