Simplified compression and reconstruction techniques of digital images by means of discrete wavelet transforms
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概要
- 論文の詳細を見る
The main aim of wavelet transform is to provide an intuitive and visual representation of digital signals or image data from the viewpoint of time-frequency or space-scale relation, respectively. Many aspects of digital images : the effect of resolution level, visual appearance of compressed and reconstructed images, and image fidelity between two different images are discussed in connection with different filter coefficients such as D2, D4, and D8 which are used in scaling equations. A fidelity degree of reconstructed images may be visually evaluated using a display result of the difference image between an original image and its reconstructed image, although the commonly used error criterion is a quantitative measure of the root-mean-squared error or PSNR.
- 東京工芸大学の論文
- 1996-01-31
著者
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Iizuka Masayuki
Tokyo Institute Of Polytechnics
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KITAMURA Mitsuyoshi
Research & Education Center Software Engineering, Tokyo Institute of Polytechnics
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Kitamura Mitsuyoshi
Research & Education Center Software Engineering Tokyo Institute Of Polytechnics
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