Image Edge Sharpening with Phase Correction
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概要
- 論文の詳細を見る
An image edge sharpening technique with phase correction for digital image is presented. In this paper the point spread functions of a typical standard single focal lens and zoom lens are investigated with a several different apertures. And from this investigation the Fourier phase figure pattern of the point-spread function is identified. The technique here includes a traditional one (a Laplacian operator) and phase-only synthesis with the corrected Fourier phase. The Fourier phase of the original non-blurred image is estimated recursively and it is utilized for implementation of the phase-only synthesis, which is powerful for image edge sharpening. A human visual property is also introduced as a weight function in order to maintain the natural smoothness in the gray level of the resulting processed image. Simulation examples show that the proposed technique is superior to the traditional one.
- 社団法人電子情報通信学会の論文
- 1999-08-25
著者
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Zhang Lifeng
Department of Materials Science and Engineering, Missouri University of Science and Technology
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KONDO Hiroshi
Department of Civil Engineering, School of Engineering
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Zhang Lifeng
Department Of Electrical Engineering Kyushu Institute Of Technology
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Zhang L
Kyushu Inst. Technol. Fukuoka Jpn
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Kondo Hiroshi
Department Of Electrical Engineering Kyushu Institute Of Technology
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Kondo Hiroshi
Department Of Agricultural Chemistry College Of Agriculture And Veterinary Medicine Nihon University
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KONDO Hiroshi
Department of Electrical Engineering, Kyushu Institute of Technology
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