BLAZE: Bilinear LAZA Algorithm for Zooming Enhancement
نویسندگان
چکیده
In this paper we address the problem of producing an enlarged picture from a given digital image (zooming). We propose a method that takes into account information about discontinuities or sharp luminance variations while zooming the input picture. This is realized by a nonlinear iterative procedure of the zoomed image and could hence be implemented with limited computational resources. The algorithm works on monochromatic images and RGB color pictures. The basic idea of our technique, BLAZE, extends a previously proposed method: LAZA. LAZA is able to zoom only by a factor 2, BLAZE extends LAZA allowing to zoom by any factor f, with f an even number. Experimental results show that the proposed method beat in quality and efficiency the classical zooming techniques (e.g. pixel replication, bilinear and bicubic).
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