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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/8523

Title: Space-Efficient Algorithm for Image Rotation
Authors: ASANO, Tetsuo
BITOU, Shinnya
MOTOKI, Mitsuo
USUI, Nobuaki
Keywords: algorithm
in-place algorithm
space-efficient algorithm
linear interpolation
cubic interpolation
Issue Date: 2008-09-01
Publisher: 電子情報通信学会
Magazine name: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Volume: E91-A
Number: 9
Start page: 2341
End page: 2348
DOI: 10.1093/ietfec/e91-a.9.2341
Abstract: This paper presents an algorithm for rotating a subimage in place without using any extra working array. Due to this constraint, we have to overwrite pixel values by interpolated values. Key ideas are local reliability test which determines whether interpolation at a pixel is carried out correctly without using interpolated values, and lazy interpolation which stores interpolated values in a region which is never used for output images and then fills in interpolated values after safety is guaranteed. It is shown that linear interpolation is always safely implemented. An extension to cubic interpolation is also discussed.
Rights: Copyright (C)2008 IEICE. Tetsuo ASANO, Shinnya BITOU, Mitsuo MOTOKI, Nobuaki USUI, IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences, E91-A(9), 2008, 2341-2348. http://www.ieice.org/jpn/trans_online/
URI: http://hdl.handle.net/10119/8523
Material Type: publisher
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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