Proportional Image Enlargement Using Combinations of Scaling and Carving Method
I Komang Somawirata, Keiichi Uchimura, Gou Koutaki · 2013
This paper proposes the proportional image enlargement using hybrid methods. Hybrid method is combinations of scaling and carving methods. This method consists of two steps. The first step enlarges the source image to the same size with minimum size for height or width from the target image. In this step, we use a kernel scaling method which is resulted in proportional content image size. The second step is the full size image enlargement in the width direction. The important content in the image is maintained. The image energy is used to detect the significant part in the image. We slice the image by following the minimum energy from top to bottom. The interpolation pixel is implemented among slices of the image. We use rank-ordered mean filters to reduce jagged image, especially in the interpolation pixels. The experiments show the proportional image enlargement, and the aspect ratio of an image is changed.