Image enlargement based on predefined codebook and eigenspace-BPLP

The back projection for lost pixel (BPLP) is a method which generates the eigenspace reflecting characteristics of an input image and restores missing pixels of the image using it. In this paper, a new image enlargement method is proposed by applying the BPLP to the predefined codebook-based method. In the proposed method, the eigenspace is generated using the predefined codebook consists of a set of low-high frequency component pairs. Then, the image enlargement, which estimates high frequency components fast and preserve the sharpness, is accomplished by the BPLP. Through experiments, the effectiveness of the proposed method is illustrated.