Comparing Interpolations in Frequency Domain and Improvement of Interpolated Images by Using Cube of Pixel Difference

Naoki Ono, Kiichi Urahama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We propose a method for improving image resolution. The method consists of an interpolation and a sharpening process. We research about some interpolations for producing high resolution images and show the properties of the interpolations in the frequency domain. Based on the research, we selected Lanczos function for the interpolation and applied the sharpening method which uses weighted sum of cubic operations of the pixel differences to the interpolated image. Experimental results also show that the sharpening with Lanczos interpolation gives clear high resolution images.
Original languageEnglish
Title of host publicationProceedings of the 4th IIAE International Conference on Intelligent Systems and Image Processing
Pages184-191
Number of pages8
Publication statusPublished - Sep 2016

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    Ono, N., & Urahama, K. (2016). Comparing Interpolations in Frequency Domain and Improvement of Interpolated Images by Using Cube of Pixel Difference. In Proceedings of the 4th IIAE International Conference on Intelligent Systems and Image Processing (pp. 184-191)